CN108964791A - A kind of 1800M RF consistency automatic test device and method - Google Patents

Abstract

The invention discloses a kind of 1800M RF consistency automatic test device and method, described device includes: test box, extension box and test controller；The test box includes digital control circuit and switch unit；The digital control circuit is used to carry out signal processing to the signal of input, and the digital control circuit is made of multiple modular circuit modules；Connection is carried out according to preset rules between the circuit module；The switch unit includes multiple signal paths, and the module or other signal paths of external equipment and digital control circuit for being attached by each of the multiple signal path according to preset rules by RF cable；The switch unit is used to control the on-off of each signal path；The extension box is used to complete extension test according to the extension signal that test box unit issues；The test controller is used to configure test case and test parameter according to testing requirement, and controls test box, extension box and external equipment.

Description

A 1800M radio frequency consistency automatic test device and method

technical field

The present invention relates to the technical field of communication, and more specifically, to an automatic test device and method for 1800M radio frequency consistency.

Background technique

At present, in the field of mobile communication technology, with the continuous development of technology, the integration of communication base stations is getting higher and higher, the frequency band coverage is expanding from GSM, UMTS, LTE to MassiveMIMO, and the transmission power range of base stations is also gradually expanding. The number of base station antennas of the fifth generation mobile communication system (Fifth Generation, 5G) has increased by dozens of times compared with previous generations.

The LTE1800M private network frequency band is different from the public network, and the traditional communication equipment test environment is not compatible, especially in the terminal radio frequency conformance test of the terminal equipment, including the test of the transmitter characteristics, receiver characteristics and performance characteristics of the terminal equipment, the test items There are many, complex and changeable test environments. The test environment built with traditional separation devices has a complex structure, low environmental adaptability and flexibility, complicated test materials, high cost, and large measurement errors between single tests. There may be a possibility of error in manual testing. The base station part can only be completed manually through traditional basic instruments, there are errors in the measurement between single tests, and there are no automated test tools.

Contents of the invention

In order to solve the problems in the background technology that there are many test items for the terminal radio frequency conformance test, the structure of the test environment is complex, the adaptability and flexibility of the environment are low, and the manual measurement error is large and the labor cost is high, the present invention provides a 1800M radio frequency conformance automatic test device and method, the device and method connect the peripheral comprehensive tester, spectrum analyzer, etc. according to the test items through the test device that can be adapted to each test item, and complete various tests for the terminal under test. The radio frequency conformance test of the item, the device has a high degree of integration and a high level of automation, and the 1800M radio frequency conformance automated test device includes:

A test box; the test box includes a digital control circuit and a switch unit;

The digital control circuit is used to perform signal processing on the signal input to the digital control circuit, and the digital control circuit is composed of a plurality of modular circuit modules, and the plurality of circuit modules include a power distribution coupling module and a filter attenuation module ; The circuit modules are connected according to preset rules;

The power distribution coupling module includes a power amplifier and a circulator; the power distribution coupling module is used to adjust and/or distribute the power of the signal input to the power distribution coupling module according to a preset ratio;

The filter attenuation module includes a programmable notch filter, a filter and a programmable attenuator, and the filter attenuation module is used to filter and/or attenuate the signal input to the filter attenuation module according to preset rules;

The switch unit includes a plurality of signal paths, and each of the plurality of signal paths is used to connect the external device with the module of the digital control circuit or other signal paths through radio frequency cables according to preset rules; the switch unit uses To control the on-off of each signal pathway;

Further, the device also includes an expansion box, the expansion box includes an expansion control circuit and an expansion unit; the expansion box is used to complete the expansion test according to the expansion signal sent by the test box unit;

The extended control circuit is used to process the input signal of the extended control circuit, and the extended control circuit is composed of a plurality of modularized circuit modules, and the plurality of circuit modules include a power distribution coupling module and a filter attenuation module ; The circuit modules are connected according to preset rules;

The power distribution coupling module includes a power amplifier and a circulator; the power distribution coupling module is used to adjust and/or distribute the power of the signal input to the power distribution coupling module according to a preset ratio;

The filter attenuation module includes a programmable notch filter, a filter and a programmable attenuator, and the filter attenuation module is used to filter and/or attenuate the signal input to the filter attenuation module according to preset rules;

The expansion unit includes N expanded interfaces and M secondary expansion interfaces; the N expanded interfaces are used to connect with the signal path of the test box and receive the extended signal of the test box; the M secondary expansion interfaces Each of them is used to connect the external expansion device with the expansion control circuit or other interfaces through radio frequency cables according to the expansion signal;

Further, the signal path of the switch unit includes a comprehensive tester interface, a signal source interface, a spectrum analyzer interface, and a terminal test interface; the comprehensive tester interface is used to connect to a comprehensive tester, and receive or output a comprehensive tester test signal; The signal source interface is used to connect to the signal source and is used to receive the signal source signal; the signal source signal includes a broadband interference source signal and a single tone interference source signal; the spectrum analyzer interface is used to connect to the spectrum analyzer for output measurement The signal is measured by the spectrum analyzer; the terminal test interface is used to connect the terminal to be tested;

Further, the signal path of the switch unit of the test box includes N expansion interfaces and 1 control interface; the expansion unit of the expansion box includes 1 controlled interface;

The N expansion interfaces of the test box are connected with the N expanded interfaces of the expansion box, and the test box sends the expansion signal to the expansion box through the expansion interface and the expanded interface; the control interface of the test box is connected to the expansion box. The controlled interface is connected, and the test box sends the control signal to the expansion box through the control interface and the controlled interface;

Further, the device includes a test controller, the switch unit of the test box includes a machine control interface, the expansion unit of the expansion box includes an expansion machine control interface, and the test controller communicates with the test box through the machine control interface Connected, connected with the expansion box through the expansion machine control interface; the test controller is used to configure test cases and test parameters according to the test requirements, and communicate with the test box, the expansion box, and the external equipment of the test box and the expansion box ; The control signal is used to control the connection mode between the modules of the digital control circuit and the signal paths of the switch unit, and the connection mode between the modules of the extended control circuit and the interfaces of the expansion unit;

Further, the device includes a cabinet;

The interior of the cabinet includes a keel frame and a plurality of pallets that can be flexibly installed, and the multiple pallets are used to hold the test box, the expansion box, the test controller and the external equipment required for testing; one of the cabinets The side is an openable side door, which can adjust the connection of the test box, expansion box, test controller and external equipment required for testing by opening the side door; the other side of the cabinet is provided with a keyboard and a display screen, the keyboard and The display screen is connected to the test controller for inputting control instructions and displaying test results;

Further, multiple groups of air intake grids are provided on the side and/or of the cabinet; multiple high-power fans are provided on the side and/or top of the cabinet to dissipate heat from the device; the bottom of the cabinet There are four brake casters, which are used to facilitate the movement and fixing of the cabinet;

Further, the surface of the cabinet is treated with electrostatic powder spraying; the bottom plate of the cabinet is provided with a grounding post, and is connected to the test box, the expansion box, the test controller and the grounding terminal of the external equipment required for testing;

Further, the device includes a network switch, the test controller is connected to the machine control interface of the test box through the network switch; the test controller is connected to the expansion machine control interface of the expansion box through the network switch; The test controller communicates with the external equipment of the test box and the expansion box through the network switch;

Further, the digital control circuit further includes a signal combination unit, which is used to combine the input multiple signals into one output signal according to preset rules.

Described a kind of 1800M radio frequency consistency automatic test method comprises:

Receive conformance test requirements, and call corresponding test cases and configure test parameters according to the requirements; the conformance test requirements include uplink and downlink conduction, broadband interference and single-tone interference;

According to the test case, the terminal to be tested, a plurality of circuit modules and signal paths in the test box, and external equipment are connected; the external equipment includes one or more of a comprehensive testing instrument, a signal source, and a spectrum analyzer; the said A plurality of circuit modules include a power distribution coupling module and a filter attenuation module; the circuit modules are connected according to test case settings;

receiving the interference signal input by the signal source according to the preset rules and the test signal input by the comprehensive tester according to the preset rules, obtaining an output signal after being processed by a plurality of circuit modules, and outputting the output signal to the terminal to be tested;

Receive the processing signal returned by the terminal to be tested, and output it to the spectrum analyzer and/or comprehensive tester for confirmation of the test result after being processed by multiple circuit modules;

Further, the connection according to the test case further includes:

According to the test case, the terminal to be tested, multiple circuit modules and signal paths in the test box, multiple expansion circuit modules and expansion interfaces in the expansion box, and external devices are connected;

The expansion box is used to fulfill further expanded conformance test requirements; the conformance test requirements also include transmit intermodulation, transmitter spurs, out-of-band blocking, receiver intermodulation and receiver spurs.

The method for calibrating the radio frequency conformance automated testing device as described above comprises:

Connecting the radio frequency conformance measuring device with a standard signal source and a standard spectrum analyzer through a radio frequency cable according to preset rules to form a test path; the preset rules include radio frequency cable connection methods for various tests;

Configuring the standard signal source, the configuration includes setting the initial frequency of the standard signal source, the measurement frequency step value and the measurement frequency range;

Use a standard signal source to send a 0dBm single tone signal at the initial frequency;

The single-tone signal power after environmental attenuation at the initial frequency obtained by a standard spectrum analyzer is the measured environmental attenuation value at the initial frequency;

Modify the measurement frequency in turn according to the measurement frequency step value, and reconfigure the standard signal source to obtain the measurement environment attenuation values at different frequencies in the entire frequency band;

The radio frequency consistency measuring device is corrected according to the measurement environment attenuation values at the different frequencies to complete the calibration.

The beneficial effects of the present invention are: the technical scheme of the present invention provides a 1800M radio frequency consistency automatic testing device and method, the device and method are provided with test boxes and expansion boxes and their respective internal modularized circuit modules, It realizes the test requirements for various test items and has high adaptability; connects various external instruments through the switch module, and controls whether the corresponding line is connected by controlling the switch on and off, so as to cope with the wiring required by various test items The method has a high level of automation; by designing the cabinet, integrating each unit and external devices, and performing overall test control according to the controller; the device and method are highly versatile and can participate in various application scenarios; no personnel are required to build on site, High integration, high reliability, but also save a lot of labor costs.

Description of drawings

A more complete understanding of the exemplary embodiments of the present invention can be had by referring to the following drawings:

Fig. 1 is the structural diagram of a kind of 1800M radio frequency consistency automatic test device of the embodiment of the present invention;

Fig. 2 is the schematic diagram of the radio frequency conformance automatic test cabinet of the specific embodiment of the present invention;

Fig. 3 is the flow chart of a kind of 1800M radio frequency consistency automatic test method of the embodiment of the present invention;

FIG. 4 is a flow chart of a method for calibrating a radio frequency consistency automatic testing device according to a specific embodiment of the present invention.

Detailed ways

Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units/elements are given the same reference numerals.

Unless otherwise specified, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or overly formal meanings.

Fig. 1 is the structural diagram of a kind of 1800M radio frequency conformance automatic test device of the specific embodiment of the present invention; Said device is through the test device that can be adapted to each test item, and the comprehensive testing instrument of peripheral equipment, spectrum analyzer etc. are carried out according to test item The line is connected, and the radio frequency conformance test of various items is completed on the terminal under test, and the described a kind of 1800M radio frequency conformance automatic test device includes:

A test box; the test box includes a digital control circuit and a switch unit;

The digital control circuit is used to perform signal processing on the signal input to the digital control circuit, and the digital control circuit is composed of a plurality of modular circuit modules, and the plurality of circuit modules include a power distribution coupling module and a filter attenuation module ; The circuit modules are connected according to preset rules;

The power distribution coupling module includes a power amplifier and a circulator; the power distribution coupling module is used to adjust and/or distribute the power of the signal input to the power distribution coupling module according to a preset ratio;

The filter attenuation module includes a programmable notch filter, a filter and a programmable attenuator, and the filter attenuation module is used to filter and/or attenuate the signal input to the filter attenuation module according to preset rules;

Further, the digital control circuit also includes a signal combination unit, which is used to combine the input multiple signals into one output signal according to preset rules;

The switch unit includes a plurality of signal paths, and each of the plurality of signal paths is used to connect the external device with the module of the digital control circuit or other signal paths through radio frequency cables according to preset rules; the switch unit uses To control the on-off of each signal pathway;

Further, the signal path of the switch unit includes a comprehensive tester interface, a signal source interface, a spectrum analyzer interface, and a terminal test interface; the comprehensive tester interface is used to connect to a comprehensive tester, and receive or output a comprehensive tester test signal; The signal source interface is used to connect to the signal source and is used to receive the signal source signal; the signal source signal includes a broadband interference source signal and a single tone interference source signal; the spectrum analyzer interface is used to connect to the spectrum analyzer for output measurement The signal is measured by the spectrum analyzer; the terminal test interface is used to connect the terminal to be tested;

Further, the switch unit also includes a USB interface and a power interface;

Each type of interface of the signal path can be one or more;

Taking this embodiment as an example, the multiple signal paths connect the external equipment with the modules of the digital control circuit or other signal paths through radio frequency cables, so that all relevant paths that need to be connected under a specific test are connected; The switch unit is used to control the on-off of each path according to the connection relationship corresponding to the test requirements; that is, it is not necessary to manually connect the equipment, modules or other signals that need to be connected every time a new test is performed, only through the switch unit. The on-off of the path is enough; the digital control circuit is composed of a plurality of modularized circuit modules, and the signal conduction mode between each modularization is controlled by the switch unit, so as to realize the circuit configuration in various situations;

Further, for each interface of the switch unit, take the comprehensive tester interface as an example: the external end of the comprehensive tester interface is used to connect to the comprehensive tester, and the internal end is used according to its possible conditions under various specific test conditions. The connection mode is connected to other interfaces, that is, the inner end of the comprehensive tester interface is connected to the inner end of the terminal interface, the inner end of the power distribution coupling module, etc.; when the test requirement is to perform transmitter spurious testing, the switch The unit selects the connection between the inner end of the interface of the comprehensive tester and the inner end of the terminal interface, so that the comprehensive tester is directly connected to the terminal to be tested;

Further, the device also includes an expansion box, the expansion box includes an expansion control circuit and an expansion unit; the expansion box is used to complete the expansion test according to the expansion signal sent by the test box unit;

The extended control circuit is used to process the input signal of the extended control circuit, and the extended control circuit is composed of a plurality of modularized circuit modules, and the plurality of circuit modules include a power distribution coupling module and a filter attenuation module ; The circuit modules are connected according to preset rules;

The power distribution coupling module includes a power amplifier and a circulator; the power distribution coupling module is used to adjust and/or distribute the power of the signal input to the power distribution coupling module according to a preset ratio;

The filter attenuation module includes a programmable notch filter, a filter and a programmable attenuator, and the filter attenuation module is used to filter and/or attenuate the signal input to the filter attenuation module according to preset rules;

The expansion unit includes N expanded interfaces and M secondary expansion interfaces; the N expanded interfaces are used to connect with the signal path of the test box and receive the extended signal of the test box; the M secondary expansion interfaces Each of them is used to connect the external expansion device with the expansion control circuit or other interfaces through radio frequency cables according to the expansion signal;

Further, the signal path of the switch unit of the test box includes N expansion interfaces and 1 control interface; the expansion unit of the expansion box includes 1 controlled interface;

The N expansion interfaces of the test box are connected to the N expanded interfaces of the expansion box, and the test box sends the expansion signal to the expansion box through the expansion interface and the expanded interface; the switch unit controls the on-off of each expansion path ; In this embodiment, N can take 4;

The control interface of the test box is connected with the controlled interface of the expansion box, and the test box sends the control signal to the expansion box through the control interface and the controlled interface; in this embodiment, the control interface and the controlled interface can be RS232 interfaces , the RS232 interface of the test box is connected with the RS232 interface of the expansion box through a serial port line, and the switch control of the test box to the expansion box is completed; that is, the switch unit of the test box controls the expansion unit through the RS232 interface;

Further, the secondary expansion interface can be externally connected to filters and amplifier modules with different characteristics in different frequency bands, so as to complete the expansion of the consistency test function for terminal equipment in different frequency bands and different formats;

Further, the device includes a test controller, the switch unit of the test box includes a machine control interface, the expansion unit of the expansion box includes an expansion machine control interface, and the test controller communicates with the test box through the machine control interface connected, connected to the expansion box through the expansion machine control interface;

The test controller is used to configure test cases and test parameters according to test requirements, and to communicate with the test box, the expansion box, and the external equipment of the test box and the expansion box; the control signal is used to control each module including the digital control circuit And the connection mode between the signal paths of the switch unit, and the connection mode between the modules of the expansion control circuit and the interfaces of the expansion unit;

Said control connection mode, that is, the test controller controls the on-off of each signal path by controlling the switch unit, and then controls the connection mode;

The test controller is used to control each external device to perform parameter configuration according to test requirements, such as controlling a comprehensive tester to configure cell-related parameters, controlling a signal source to send a single-tone interference signal of a specific frequency, etc.;

Further, the device includes a network switch, the test controller is connected to the machine control interface of the test box through the network switch; the test controller is connected to the expansion machine control interface of the expansion box through the network switch; The test controller communicates with the external equipment of the test box and the expansion box through the network switch;

Taking this embodiment as an example, both the machine control interface and the extended machine control interface are RJ45 interfaces;

Further, the device includes a cabinet; FIG. 2 is a schematic diagram of a radio frequency consistency automatic test cabinet according to a specific embodiment of the present invention; as shown in FIG. 2:

The interior of the cabinet includes a keel frame and a plurality of pallets that can be flexibly installed, and the multiple pallets are used to hold the test box, the expansion box, the test controller and the external equipment required for testing; one of the cabinets The side is an openable side door, which can adjust the connection of the test box, expansion box, test controller and external equipment required for testing by opening the side door; the other side of the cabinet is provided with a keyboard and a display screen, the keyboard and The display screen is connected to the test controller for inputting control instructions and displaying test results;

The keyboard provided is a keyboard table with a guide rail and a direct guide rail, and the keyboard can be pulled out or pushed back according to the usage;

The display screen is fixed on a side foldable display stand to ensure flexibility when using the test controller;

The shells of the test box and the expansion box are set to be matched with the keel frame and the supporting plate inside the cabinet, and can be matched and fixed inside the cabinet;

Further, multiple sets of air intake grills are provided on the side and/or of the cabinet; multiple high-power fans are provided on the side and/or top of the cabinet to dissipate heat from the device;

Furthermore, the rear side of the bracket and the supporting plate inside the cabinet can be flexibly installed with wiring troughs and cable management racks, and the bottom of the back is distributed with cable boards to facilitate the regulation and fixing of internal wiring;

Further, the bottom of the cabinet is provided with four brake casters, which are used to facilitate the movement and fixing of the cabinet;

Further, the surface of the cabinet is treated with electrostatic powder spraying; the bottom plate of the cabinet is provided with a grounding post, and is connected to the test box, the expansion box, the test controller and the grounding terminal of the external equipment required for testing;

Further, the device includes a power distributor, and the voltage distributor is used to introduce external units into the device for use by the test box, expansion box and test controller.

Fig. 3 is the flow chart of a kind of 1800M radio frequency consistency automatic test method of the specific embodiment of the present invention; As shown in Fig. 3, described method comprises:

Step 310, receiving conformance test requirements, calling corresponding test cases and configuring test parameters according to the requirements; the conformance test requirements include uplink and downlink conduction, broadband interference and single-tone interference;

Step 320, connect the terminal to be tested, multiple circuit modules and signal paths in the test box, and external devices according to the test case; the external devices include one or more of a comprehensive tester, a signal source, and a spectrum analyzer ; The multiple circuit modules include a power distribution coupling module and a filter attenuation module; the circuit modules are connected according to the test case settings;

Further, according to the test case, the terminal to be tested, multiple circuit modules and signal paths in the test box, multiple expansion circuit modules and expansion interfaces in the expansion box, and external devices are connected;

The expansion box is used to complete further expanded conformance test requirements; the conformance test requirements also include transmit intermodulation, transmitter spurs, out-of-band blocking, receiver intermodulation and receiver spurs;

Step 330, receiving the interference signal input by the signal source according to the preset rules and the test signal input by the comprehensive tester according to the preset rules, obtaining an output signal after being processed by a plurality of circuit modules, and outputting the output signal to the terminal to be tested;

Step 340, receiving the processing signal returned by the terminal to be tested, and outputting it to a spectrum analyzer and/or a comprehensive tester for confirmation of test results after being processed by a plurality of circuit modules.

Fig. 4 is a flow chart of a method for calibrating a radio frequency consistency automatic test device according to a specific embodiment of the present invention. As shown in Fig. 4, the method includes:

Step 410, connect the radio frequency consistency measuring device with the standard signal source and the standard spectrum analyzer through the radio frequency cable according to the preset rules to form a test path; the preset rules include the radio frequency cable connection methods for various tests;

Step 420, configure the standard signal source, the configuration includes setting the initial frequency of the standard signal source, the measurement frequency step value and the measurement frequency range;

Step 430, using a standard signal source to send a 0dBm single tone signal at the initial frequency;

Step 440, obtain the single-tone signal power at the initial frequency after the environmental attenuation through the standard spectrum analyzer, which is the measured environmental attenuation value at the initial frequency;

Step 450, modify the measurement frequency in turn according to the measurement frequency step value, and reconfigure the standard signal source to obtain the measurement environment attenuation values at different frequencies in the whole frequency band;

Step 460, correcting the radio frequency consistency measuring device according to the measurement environment attenuation values at the different frequencies to complete the calibration.

In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the present disclosure may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure the understanding of this description.

Those skilled in the art can understand that the modules in the device in the embodiment can be adaptively changed and arranged in one or more devices different from the embodiment. Modules or units or components in the embodiments may be combined into one module or unit or component, and furthermore may be divided into a plurality of sub-modules or sub-units or sub-assemblies. All features disclosed in this specification (including accompanying claims, abstract and drawings) and any method or method so disclosed may be used in any combination, except that at least some of such features and/or processes or units are mutually exclusive. All processes or units of equipment are combined. Each feature disclosed in this specification (including accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. The step numbers involved in this specification are only used to distinguish each step, and are not used to limit the time or logical relationship between each step. Unless otherwise clearly defined in the text, the relationship between each step includes various possible Happening.

In addition, those skilled in the art will understand that although some embodiments described herein include some features included in other embodiments but not others, combinations of features from different embodiments are meant to be within the scope of the present disclosure. and form different embodiments. For example, any one of the embodiments claimed in the claims may be used in any combination.

The various component embodiments of the present disclosure may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. The present disclosure can also be implemented as an apparatus or system program (eg, computer program and computer program product) for performing a part or all of the methods described herein. Such a program realizing the present disclosure may be stored on a computer-readable medium, or may have the form of one or more signals. Such a signal may be downloaded from an Internet site, or provided on a carrier signal, or provided in any other form.

It should be noted that the above-mentioned embodiments illustrate rather than limit the disclosure, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The disclosure can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In a unit claim enumerating several systems, several of these systems can be embodied by one and the same item of hardware.

The above descriptions are only specific implementations of the present disclosure. It should be noted that those skilled in the art can make several improvements, modifications, and variations without departing from the spirit of the present disclosure. These improvements, Modifications and deformations should be considered as falling within the scope of protection of this application.

Claims (13)

1. A 1800M radio frequency conformance automated testing device, said device comprising: a test box; said test box includes a digital control circuit and a switch unit; The digital control circuit is used to perform signal processing on the signal input to the digital control circuit, and the digital control circuit is composed of a plurality of modular circuit modules, and the plurality of circuit modules include a power distribution coupling module and a filter attenuation module ; The circuit modules are connected according to preset rules; The power distribution coupling module includes a power amplifier and a circulator; the power distribution coupling module is used to adjust and/or distribute the power of the signal input to the power distribution coupling module according to a preset ratio; The filter attenuation module includes a programmable notch filter, a filter and a programmable attenuator, and the filter attenuation module is used to filter and/or attenuate the signal input to the filter attenuation module according to preset rules; The switch unit includes a plurality of signal paths, and each of the plurality of signal paths is used to connect the external device with the module of the digital control circuit or other signal paths through radio frequency cables according to preset rules; the switch unit uses To control the on-off of each signal pathway. 2. The device according to claim 1, characterized in that: the device also includes an expansion box, the expansion box includes an expansion control circuit and an expansion unit; the expansion box is used to complete the test according to the expansion signal sent by the test box unit Extended testing; The extended control circuit is used to process the input signal of the extended control circuit, and the extended control circuit is composed of a plurality of modularized circuit modules, and the plurality of circuit modules include a power distribution coupling module and a filter attenuation module ; The circuit modules are connected according to preset rules; The power distribution coupling module includes a power amplifier and a circulator; the power distribution coupling module is used to adjust and/or distribute the power of the signal input to the power distribution coupling module according to a preset ratio; The filter attenuation module includes a programmable notch filter, a filter and a programmable attenuator, and the filter attenuation module is used to filter and/or attenuate the signal input to the filter attenuation module according to preset rules; The expansion unit includes N expanded interfaces and M secondary expansion interfaces; the N expanded interfaces are used to connect with the signal path of the test box and receive the extended signal of the test box; the M secondary expansion interfaces Each of them is used to connect the external expansion device with the expansion control circuit or other interfaces through the radio frequency cable according to the expansion signal. 3. The method according to claim 1, characterized in that: the signal path of the switch unit includes a comprehensive tester interface, a signal source interface, a spectrum analyzer interface and a terminal test interface; the comprehensive tester interface is used to connect the comprehensive tester The tester receives or outputs the test signal of the comprehensive tester; the signal source interface is used to connect the signal source to receive the signal source signal; the signal source signal includes a broadband interference source signal and a single tone interference source signal; the frequency spectrum The instrument interface is used to connect to the spectrum analyzer, and is used to output measurement signals for the spectrum analyzer to measure; the terminal test interface is used to connect to the terminal to be tested. 4. The method according to claim 2, characterized in that: the signal path of the switch unit of the test box includes N expansion interfaces and 1 control interface; the expansion unit of the expansion box includes 1 controlled interface; The N expansion interfaces of the test box are connected with the N expanded interfaces of the expansion box, and the test box sends the expansion signal to the expansion box through the expansion interface and the expanded interface; the control interface of the test box is connected to the expansion box. The controlled interface is connected, and the test box sends the control signal to the expansion box through the control interface and the controlled interface. 5. The method according to claim 2, characterized in that: the device includes a test controller, the switch unit of the test box includes a machine control interface, the expansion unit of the expansion box includes an expansion machine control interface, the The test controller is connected to the test box through the machine control interface, and is connected to the expansion box through the expansion machine control interface; The test box and the external equipment of the expansion box communicate; the control signal is used to control the connection mode between the modules of the digital control circuit and the signal paths of the switch unit, and the connection between the modules of the expansion control circuit and the interfaces of the expansion unit. connection method. 6. The device according to claim 5, characterized in that: the device comprises a cabinet; The interior of the cabinet includes a keel frame and a plurality of pallets that can be flexibly installed, and the multiple pallets are used to hold the test box, the expansion box, the test controller and the external equipment required for testing; one of the cabinets The side is an openable side door, which can adjust the connection of the test box, expansion box, test controller and external equipment required for testing by opening the side door; the other side of the cabinet is provided with a keyboard and a display screen, the keyboard and The display screen is connected with the test controller and is used for inputting control instructions and displaying test results. 7. The device according to claim 6, characterized in that: the side and/or of the cabinet are provided with multiple groups of air intake grills; the side and/or top of the cabinet are provided with a plurality of high-power fans for The device is dissipated; the bottom of the cabinet is provided with four brake casters, which are used to facilitate the movement and fixing of the cabinet. 8. The device according to claim 6, characterized in that: the surface of the cabinet is treated by electrostatic powder spraying; Connect the ground terminal of the external equipment required for testing. 9. The device according to claim 5, characterized in that: the device comprises a network switch, and the test controller is connected to the machine control interface of the test box through the network switch; the test controller is connected through the network The switch is connected with the expansion machine control interface of the expansion box; the test controller communicates with the test box and the external equipment of the expansion box through the network switch. 10. The device according to claim 1, wherein the digital control circuit further comprises a signal combining unit, the signal combining unit is used to combine multiple input signals into one output signal according to preset rules . 11. A 1800M radio frequency conformance automated testing method, said method comprising: Receive conformance test requirements, and call corresponding test cases and configure test parameters according to the requirements; the conformance test requirements include uplink and downlink conduction, broadband interference and single-tone interference; According to the test case, the terminal to be tested, a plurality of circuit modules and signal paths in the test box, and external equipment are connected; the external equipment includes one or more of a comprehensive testing instrument, a signal source, and a spectrum analyzer; the said A plurality of circuit modules include a power distribution coupling module and a filter attenuation module; the circuit modules are connected according to test case settings; receiving the interference signal input by the signal source according to the preset rules and the test signal input by the comprehensive tester according to the preset rules, obtaining an output signal after being processed by a plurality of circuit modules, and outputting the output signal to the terminal to be tested; The processing signal returned by the terminal to be tested is received, processed by multiple circuit modules, and then output to the spectrum analyzer and/or comprehensive tester for confirmation of test results. 12. The method according to claim 11, wherein said connecting a plurality of circuit modules and signal paths in the terminal to be tested, a test box, and an external device according to the test case further comprises: According to the test case, the terminal to be tested, multiple circuit modules and signal paths in the test box, multiple expansion circuit modules and expansion interfaces in the expansion box, and external devices are connected; The expansion box is used to fulfill further expanded conformance test requirements; the conformance test requirements also include transmit intermodulation, transmitter spurs, out-of-band blocking, receiver intermodulation and receiver spurs. 13. A method of calibrating the device of claim 1, said method comprising: Connecting the radio frequency conformance measuring device with a standard signal source and a standard spectrum analyzer through a radio frequency cable according to preset rules to form a test path; the preset rules include radio frequency cable connection methods for various tests; Configuring the standard signal source, the configuration includes setting the initial frequency of the standard signal source, the measurement frequency step value and the measurement frequency range; Use a standard signal source to send a 0dBm single tone signal at the initial frequency; The single-tone signal power after environmental attenuation at the initial frequency obtained by a standard spectrum analyzer is the measured environmental attenuation value at the initial frequency; Modify the measurement frequency in turn according to the measurement frequency step value, and reconfigure the standard signal source to obtain the measurement environment attenuation values at different frequencies in the entire frequency band; The radio frequency consistency measuring device is corrected according to the measurement environment attenuation values at the different frequencies to complete the calibration.