CN215833432U - Intelligent assembly of traditional instrument - Google Patents
Intelligent assembly of traditional instrument Download PDFInfo
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- CN215833432U CN215833432U CN202121371574.1U CN202121371574U CN215833432U CN 215833432 U CN215833432 U CN 215833432U CN 202121371574 U CN202121371574 U CN 202121371574U CN 215833432 U CN215833432 U CN 215833432U
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Abstract
The application relates to an intelligent subassembly of traditional instrument relates to the field of the intelligent transformation of traditional instrument, and it includes: the remote display device comprises a data acquisition module, a remote sending module, a remote display module and a controller; the data acquisition module is configured as a main transmission module, is in signal connection with both the traditional instrument and the controller and is used for acquiring an instrument output signal obtained by measurement of the traditional instrument; the remote sending module is in signal connection with the data acquisition module, and is used for forwarding the output signal of the instrument and outputting the output signal as a remote transmission signal; the remote display module is in signal connection with the remote sending module, receives and displays the remote transmission signal; the data acquisition module is connected with the remote display module through a signal, and the remote transmission module is connected with the remote display module through a signal. This application has the data transmission of traditional instrument, and can realize a plurality of traditional instruments of same equipment simultaneous signal connection, perhaps carries out signal transmission's effect between with same equipment and the traditional instrument of difference.
Description
Technical Field
The application relates to the field of intelligent modification of traditional instruments, in particular to an intelligent assembly of a traditional instrument.
Background
At present, a plurality of traditional test instruments such as a digital multimeter, a ground resistance tester, an insulation tester and other devices are on the market, and the various devices do not have data transmission interfaces. Conventional meters typically have a built-in liquid crystal driver for displaying data, and the liquid crystal driver typically includes a serial interface. In order to meet the development requirements of the society, some devices are provided with data transmission interfaces, but the price of the meters is very high. For some devices requiring remote monitoring, if data transmission is realized by adding new devices, the cost is easily increased by times.
With respect to the related art in the above, the inventors consider that: if the same equipment is required to be simultaneously in signal connection with a plurality of traditional instruments, or the same equipment and different traditional instruments are subjected to signal transmission, technically, the signal transmission is not easy to realize in a short period, and the time cost is high.
SUMMERY OF THE UTILITY MODEL
In order to realize a plurality of traditional meters of same equipment simultaneous signal connection, perhaps with carrying out signal transmission between same equipment and the traditional meter of difference, this application provides a traditional instrument intelligent component.
The application provides a pair of intelligent subassembly of traditional instrument adopts following technical scheme:
a traditional instrument intelligent assembly is connected with traditional instrument signal, includes: the remote display device comprises a data acquisition module, a remote sending module, a remote display module and a controller;
the data acquisition module is configured as a main transmission module, is in signal connection with both the traditional instrument and the controller, and is used for acquiring an instrument output signal obtained by measurement of the traditional instrument;
the remote sending module is in signal connection with the data acquisition module, and is used for forwarding the output signal of the instrument and outputting the output signal as a remote transmission signal;
the remote display module is in signal connection with the remote sending module, receives the remote transmission signal and displays the remote transmission signal;
the data acquisition module is connected with the remote transmission module through a signal, and the remote transmission module is connected with the remote display module through a signal.
By adopting the technical scheme, the instrument output signal obtained by the measurement of the traditional instrument is acquired through the data acquisition module, and the remote sending module can forward the instrument output signal to the remote display module, so that the data measured by the traditional instrument can be remotely detected. Thereby realize the data transmission of traditional instrument, and can realize that same equipment simultaneous signal connects a plurality of traditional instruments, perhaps with carrying out signal transmission between same equipment and the traditional instrument of difference.
Preferably, the liquid crystal driver is arranged in the conventional instrument, the liquid crystal driver includes a serial interface, the first communication circuit is a serial interface circuit, and a bidirectional level conversion circuit is further arranged between the first communication circuit and the serial interface.
By adopting the technical scheme, the traditional instrument usually displays the measured data information through the liquid crystal display screen, so the liquid crystal driver is provided with the serial interface and can form a transmission channel with the first communication circuit to transmit data. The compatibility between different level signals is realized through the bidirectional level conversion circuit.
The bidirectional level conversion circuit can realize compatibility among different levels, and resistors can be connected in series if the levels are the same.
Preferably, the bidirectional conversion circuit further comprises a switch, two ends of the switch are respectively connected to the data acquisition module and the serial interface through signals, and the switch controls on/off between the serial interface and the power supply.
Through adopting above-mentioned technical scheme, because traditional instrument also needs the power supply, through the setting of switch spare, can guarantee the normal work of traditional instrument for traditional instrument power supply.
Preferably, the switching element is configured as a MOS transistor.
Through adopting above-mentioned technical scheme, the MOS pipe is for low switching on, after receiving high level signal, can switch on, for traditional instrument power supply.
Preferably, the first communication circuit is configured with an SPI interface circuit and/or an IIC interface circuit.
By adopting the technical scheme, because the serial interfaces of the traditional instrument are different, the SPI interface or the IIC interface is required to be matched with the main transmission module.
Preferably, the intelligent control card comprises a memory, and the memory is in signal connection with the serial bus.
By adopting the technical scheme, the memory can store the instrument output signals acquired by the intelligent control card in real time, and the instrument output signals are stored and can be conveniently checked by a worker at any time.
Preferably, the remote display module comprises a first trigger module, and the first trigger module outputs a test signal;
the remote sending module further comprises a first comparator, the first comparator is in signal connection with the memory and the remote display module, and two input ends of the first comparator respectively receive the test signal and the identification signal and output a first control signal.
Through adopting above-mentioned technical scheme, can realize the test to traditional instrument operating condition, and save test data to the memory in, the staff of being convenient for looks over.
Preferably, the remote display module comprises a second trigger module and a timer which are in signal connection, the timer outputs a timing signal, and the second trigger module receives the timing signal and outputs a timing secondary test signal;
the remote sending module further comprises a second comparator, the second comparator is in signal connection with the memory and the remote display module, and two input ends of the second comparator respectively receive the timing and timing secondary test signal and the identification signal and output a second control signal.
By adopting the technical scheme, the second trigger module outputs the timing test signal after receiving the timing signal, the remote sending module starts the instrument test according to the set time timing and the set times after receiving the signal, the test is completed, the data is stored in the memory, and the data test and the storage are completed so as to be convenient for checking.
Preferably, the second communication circuit includes a CAN interface circuit and/or an RS485 interface circuit.
By adopting the technical scheme, the signal transmission between the remote sending module and the remote display module is realized through the CAN interface circuit, the RS485 interface circuit and the corresponding protocol, and the test data of the traditional instrument CAN be conveniently detected remotely.
In summary, the present application includes at least one of the following beneficial technical effects:
1. according to the data reading device, data are intelligently read through the serial interface, the read data are transmitted to the remote display module, the data measured by the traditional instrument are remotely detected, and further the data transmission of the traditional instrument is realized, and the data reading device is simple in structure and low in cost;
2. the remote sending module can send the test data of the traditional instrument to the remote display module regularly and regularly under the control of the remote display module, and meanwhile, the test data are stored in the memory, so that the test data are convenient to check;
3. through the setting of MOS pipe, can be through the break-make of MOS pipe, the power supply state of control traditional instrument.
Drawings
FIG. 1 is an assembled circuit diagram of an embodiment of the present application;
FIG. 2 is a circuit diagram of a bidirectional level shift circuit according to an embodiment of the present application;
fig. 3 is a diagram illustrating a connection structure between a remote display module and a first comparator and a second comparator according to an embodiment of the present invention.
Reference numerals: 0. a conventional meter; 01. a serial interface; 1. a data acquisition module; 11. a first communication circuit; 2. a remote transmitting module; 3. a remote display module; 31. a first trigger module; 32. a second trigger module; 33. a timer; 4. a controller; 41. a memory; 5. an intelligent control card; 51. a second communication circuit; 52. a switch member; 53. a first comparator; 54. a second comparator; 6. a bidirectional level conversion circuit; 7. and an industrial personal computer.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses intelligent subassembly of traditional instrument. Referring to fig. 1, the conventional meter intelligent component provided by the present application is mainly used for signal connection with the conventional meter 0 and acquiring measurement data of the conventional meter 0 in real time.
The traditional intelligent instrument assembly mainly comprises a data acquisition module 1, a remote sending module 2, a remote display module 3 and a controller 4. The data acquisition module 1 is used for acquiring data obtained by measurement of a traditional instrument 0, namely an instrument output signal; the remote sending module 2 is mainly used for remotely transmitting the data obtained by the data obtaining module 1; the remote display module 3 is intended to display the data transmitted by the remote transmission module 2 for viewing; and the controller 4 mainly controls the overall operation state of the components.
The conventional meter 0 is usually provided with a liquid crystal display, which is mainly used for displaying data information obtained by measurement, and the liquid crystal display usually needs a liquid crystal driver to drive and operate, and an interface of the liquid crystal driver generally includes a serial interface 01.
Further, the data obtaining module 1 is configured as a master transmission module in the embodiment of the present application, and further may be configured as a master transmission module in a serial bus, where the serial interface 01 in the conventional meter 0 is a slave transmission module. The main transmission module of the serial bus can realize data transmission with the serial interface 01, so that the purpose of acquiring the instrument output signal obtained by measuring the traditional instrument 0 is realized.
In order to realize the signal transmission between the data acquisition module 1 and the remote transmission module 2, the signal connection is also provided with a first communication circuit 11, the first communication circuit 11 can be configured with an SPI interface circuit and/or an IIC interface circuit, and can be adapted to the serial interfaces 01 of different liquid crystal drivers, so that the application range of the traditional instrument intelligent assembly provided by the application is wider.
For the purpose of remote transmission, the remote sending module 2 is configured as an intelligent control card 5 for implementing data transmission between the data obtaining module 1 and the remote display module 3, and the signal output by the intelligent control card 5 to the remote display module 3 is a remote transmission signal.
The intelligent control card 5 can adopt one of a 51-chip single chip microcomputer, an ARM and an industrial control board. The intelligent control card 5 comprises a memory 41 which can be configured as FLASH, and the memory 41 is in signal connection with a main transmission module of the serial bus.
In order to simplify the structure, the main transmission module of the serial bus can directly adopt the main transmission module of the serial bus in the intelligent control.
When the intelligent control card 5 selects the ARM, because the level used by the ARM system MCU is generally 3.3V, and the bus level of the conventional instrument 0 is generally 5V, a bidirectional level conversion circuit 6 is further provided between the main transmission module of the serial bus and the serial interface 01 for compatibility of the levels of the two.
Referring to fig. 2, the bidirectional level shift circuit 6 includes a first resistor R1, a second resistor R2 and a third resistor R3, wherein two ends of the first resistor R1 are respectively connected to the signal terminal VCC-3.3V and the signal terminal IN1-5V, two ends of the second resistor R2 are respectively connected to the signal terminal VCC-3.3V and the signal terminal IN1-3.3V, and two ends of the third resistor R3 are respectively connected to the signal terminal VCC-5V and the signal terminal IN 1-5V.
If the intelligent control card 5 is configured as a chip compatible with 5V voltage, the bidirectional level conversion circuit 6 may also use a resistor connected in series.
Referring to fig. 1, the intelligent control card 5 further comprises a second communication circuit 51, and the second communication circuit 51 is used for connecting the remote display module 3 and the intelligent control card 5. The second communication circuit 51 mainly comprises a CAN interface circuit and an RS485 interface circuit, and according to actual conditions, two ends of the CAN interface circuit or the RS485 interface circuit are respectively in signal connection with the remote display module 3 and the intelligent control card 5 for achieving the purpose of remote data transmission.
Further, the remote display module 3 is configured as an industrial personal computer 7, and in the process of remotely detecting the traditional instruments 0, a plurality of traditional instruments 0 may need to be detected, and meanwhile, data of different traditional instruments 0 need to be exchanged for display, so that a control device is needed, and the control and display can be simultaneously carried out through the industrial personal computer 7.
In the in-service use, industrial computer 7 and 2 signal connection of long-range sending module receive the teletransmission signal, then show through the display, and the staff of being convenient for looks over, and the staff can show the data of traditional instrument 0 that need look over through industrial computer 7 control simultaneously.
The controller 4 may directly employ the control components in the intelligent control card 5 in the embodiment of the present application. The controller 4 is respectively connected with the data acquisition module 1, the remote sending module 2 and the remote display module 3 through signals.
Referring to fig. 3, in order to test the working performance of the conventional instrument 0, the industrial personal computer 7 can send a test signal to the intelligent control card 5 through the first trigger module 31, after the intelligent control card 5 receives the test signal, the test signal is recognized through the first comparator 53, and power is supplied to the conventional instrument 0 at the same time, the conventional instrument 0 starts to test, the intelligent control card 5 monitors the serial port data of the liquid crystal driver in real time, the instrument test signal output by the conventional instrument 0 is read in time after the test is completed, the read data signal can be stored in the memory 41, and data interaction is completed with the remote display module 3 at the same time.
Referring to fig. 1 and 2, IN which the intelligent control card 5 supplies power to the conventional meter 0 through the switch 52, two ends of the switch 52 are respectively connected to the serial bus and the serial interface 01 through signals, IN this embodiment, the switch 52 is configured as a MOS transistor, and the gate G is connected to one end of the first resistor R1 away from the signal terminal VCC-3.3V through a signal, the source S is connected to the signal terminal IN1-3.3V through a signal, and the drain D is connected to the signal terminal IN1-5V through a signal.
In addition, referring to fig. 3, the industrial personal computer 7 can also output a timing and fixed-time test signal through the second trigger module 32 and the timer 33, the industrial personal computer 7 firstly receives the timing signal output by the internal timer 33, and then the second trigger module 32 outputs the timing and fixed-time test signal to the intelligent control card 5. After receiving the timing test signal, the intelligent control card 5 identifies the timing test signal through the second comparator 54, so that the intelligent control card 5 starts the conventional instrument 0 to test according to the set time timing, the timing and the timing, and the data is stored in the FLASH after the test is finished, thereby ensuring that the data test and the data storage can be finished even if the communication between the intelligent control card 5 and the remote display module 3 is abnormal.
Wherein the first trigger module 31 and the second trigger module 32 can be configured as buttons, the identification signal is a different signal pre-stored in the memory 41 and can be compared by the first comparator 53 or the second comparator 54, and the result signal is output. The first control signal and the second control signal are used for controlling the traditional instrument to test.
Referring to fig. 1, in order to display the operating state of the power supply, the intelligent control card 5 is further connected with a first indicator light LED1 through a signal. In order to display the working state of the intelligent control card 5, the intelligent control card 5 is further connected with a second display lamp LED2 through signals.
The implementation principle of the intelligent assembly of the traditional instrument in the embodiment of the application is as follows: the intelligent control card 5 acquires an instrument output signal measured by the traditional instrument 0 in real time, remotely outputs the instrument output signal to the industrial personal computer 7 after conversion, and the instrument output signal is displayed by a display of the industrial personal computer 7, so that a worker can check measurement data in real time. Meanwhile, the working state of the traditional instrument 0 can be tested, and the test data is stored in the FLASH, so that the test data is convenient to check.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. A traditional instrument intelligent component is connected with traditional instrument (0) signal, its characterized in that includes: the system comprises a data acquisition module (1), a remote sending module (2), a remote display module (3) and a controller (4);
the data acquisition module (1) is configured as a main transmission module, is in signal connection with both the traditional instrument (0) and the controller (4), and is used for acquiring an instrument output signal measured by the traditional instrument (0);
the remote sending module (2) is in signal connection with the data acquisition module (1), and is used for forwarding the output signal of the instrument and outputting the output signal as a remote transmission signal;
the remote display module (3) is in signal connection with the remote sending module (2), receives the remote transmission signal and displays the remote transmission signal;
the data acquisition module (1) is connected with the remote transmission module (2) through a signal, the first communication circuit (11) is connected between the data acquisition module and the remote transmission module, and the second communication circuit (51) is connected between the remote transmission module (2) and the remote display module (3) through a signal.
2. A conventional instrument intelligent assembly according to claim 1, the conventional instrument (0) is internally provided with a liquid crystal driver, the liquid crystal driver comprises a serial interface (01), and the first communication circuit (11) is a serial interface (01) circuit, and a bidirectional level conversion circuit (6) is further arranged between the serial interface (01) and the first communication circuit.
3. The intelligent assembly of a traditional meter according to claim 2, wherein the bidirectional conversion circuit further comprises a switch element (52), two ends of the switch element (52) are respectively connected to the data acquisition module (1) and the serial interface (01) through signals, and the switch element (52) controls on/off between the serial interface (01) and a power supply.
4. A conventional meter intelligence assembly according to claim 3 wherein the switch member (52) is configured as a MOS transistor.
5. A legacy instrument intelligence assembly according to claim 2, characterized in that said first communication circuit (11) is equipped with SPI interface circuit and/or IIC interface circuit.
6. A conventional meter intelligence assembly according to claim 1 wherein the controller (4) includes a memory (41), the memory (41) being in signal communication with the first communication circuit (11).
7. A legacy instrument intelligence assembly according to claim 6, characterized in that said remote display module (3) comprises a first trigger module (31), said first trigger module (31) outputting a test signal;
the remote transmitting module (2) further comprises a first comparator (53), the first comparator (53) is in signal connection with the memory (41) and the remote display module (3), and two input ends of the first comparator (53) respectively receive the test signal and the identification signal and output a first control signal.
8. A traditional meter intelligent assembly according to claim 7, wherein the remote display module (3) comprises a second trigger module (32) and a timer (33) which are connected by signals, the timer (33) outputs a timing signal, and the second trigger module (32) receives the timing signal and outputs a timing secondary test signal;
the remote sending module (2) further comprises a second comparator (54), the second comparator (54) is in signal connection with the memory (41) and the remote display module (3), and two input ends of the second comparator (54) respectively receive the timing secondary test signal and the identification signal and output a second control signal.
9. A legacy instrument intelligence assembly according to claim 1, characterized in that said second communication circuit (51) comprises a CAN interface circuit and/or an RS485 interface circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121371574.1U CN215833432U (en) | 2021-06-18 | 2021-06-18 | Intelligent assembly of traditional instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121371574.1U CN215833432U (en) | 2021-06-18 | 2021-06-18 | Intelligent assembly of traditional instrument |
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| Publication Number | Publication Date |
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| CN215833432U true CN215833432U (en) | 2022-02-15 |
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| CN202121371574.1U Active CN215833432U (en) | 2021-06-18 | 2021-06-18 | Intelligent assembly of traditional instrument |
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