Prison, detention house special solar power supply type wireless communication signals shielding harness
Technical field
The present invention relates to the wireless signal shield technology in the moving communicating field; Especially propose the energy-saving power generation system that a kind of utilization is independent of the environmental protection of low voltage electric network, and use the shielding harness of this energy-saving power generation system as the power supply of mobile radio telecommunications shield terminal.
Background technology
In recent years; Increasing offender advances illegal activity that prison carries out through transporting mobile phone secretly; Some criminals then make a phone call, send short messages in prison institute through the mobile phone of illegally transporting secretly; With obtain data, statements based on collusion are reversed a verdict, intimidate a witness, are formed faction and tissue is escaped from prison, even in prison institute, continue crime with the partner outside the mobile phone operation.Mobile phone prison in use make the education of putting in prison to criminal can not get really effectively implementing, also become the serious threat of supervising institute's safety management.At present; The main measure of adopting that prevents of prison institute mainly contains outside the communication apparatus such as forbidding bringing into mobile phone through regulations order; The use that hardware systems such as increase relevant detection equipment are stopped above-mentioned communication tool, and the cultivation of strengthen management personnel self attainment and security precautions.But because technological prevention " with the deficiency of " personnel's stricks precaution " objective reality, directly cause the violation of mobile phone use supervise in remain incessant after repeated prohibition, malignant event frequently takes place, and can't thoroughly get rid of mobile phone and use the various pernicious consequence that causes in violation of rules and regulations.
Prior art is that the mode through software is forbidden communication to specific mobile phone number in the prison institute on communication base station for a kind of mode that addresses the above problem employing; But this scheme drops into excessive at technological layer and cost; And prison in communicating number be unknown in advance; If forbidding then must postpone the monitoring to it, also be unfavorable for supervising the guarantee of institute's internal information safety.
Prior art is that mobile phone signal is shielded for the another kind of mode that addresses the above problem employing, and its nucleus equipment is a shield terminal.During shield terminal work at present is that shield terminal is inserted low voltage electric network, by low voltage electric network working power is provided; Consider that shield terminal needs twenty four hours continuous operation every day, the main at present energy mode that adopts has public electric wire net power supply and prison to adopt the house generator power supply separately.If but adopt utility grid, in case the shield terminal that occurs having a power failure etc. when unusual also can't operate as normal, then lawless people can adopt this space crime; , the employing house generator is unfavorable for very much the saving of resource and cost if supplying power; Simultaneously when power supply breaks down, need carry out rush repair, and as prison in its major responsibility of administrative staff be to the supervision in the personnel under detention, also also non-professional attendant; Even corresponding personnel understand the maintenance knowledge of this respect; When abnormal conditions occurring and extract manpower out and safeguard above-mentioned power-supply device, the just corresponding disappearance in some management position, it is unfavorable to bring the processing of some emergencies.This just requires the electric power system of shield terminal must have reliability, fail safe and the non-maintaining performance of height.
Summary of the invention
The invention reside in and propose prison, a kind of detention house special solar power supply type wireless communication signals shielding harness, the solar energy converting that is independent of low voltage electric network through utilization becomes electric energy to supply power for shielding harness, reaches the purpose of high reliability and fail safe.
For realizing above-mentioned purpose, the present invention has adopted following technical scheme: prison, a kind of detention house special solar power supply type wireless communication signals shielding harness, and it comprises:
One or more shield terminals, each shield terminal all is connected to the shield terminal controller through information transmission medium;
Be used for sending control command to each shield terminal, or obtain the administration module of each shield terminal work state information through the shield terminal controller through the shield terminal controller;
Energy conversion in the environment is electric energy and is the power module of shield terminal and the power supply of shield terminal controller that this power module comprises at least:
Wherein a kind of energy conversion in the environment is treated to the energy conversion module of electric energy and output;
The electric energy of energy conversion module output is stored, and the deposit energy module of as required electric energy stored being exported;
The intelligent controller that control deposit energy module carries out power storage and electric energy output;
Convert the electric energy of deposit energy module output to specific direct voltage or the transducer of alternating voltage on demand.
Preferably, the energy conversion module is a solar battery group, and it is fixedly installed on some fixed objects through a support, and shield terminal and all system equipments all carry out totally-enclosed protection through corresponding iron bar simultaneously.
Preferably, the deposit energy module comprises: be connected the output of energy conversion module, and receive the storage battery of intelligent controller control; And the electric energy that utilizes energy conversion module output battery charger that storage battery is charged.
Preferably, storage battery is composed in series by the battery of or many accumulations, and battery types comprises dark circular form lead acid accumulator, sealed lead-acid battery, common opening lead acid accumulator and nickel-cadmium alkaline battery, vanadium cell.
Preferably, intelligent controller is switching mode controller or pulse-width modulation type controller.
Preferably, transducer comprises DC-to-dc converting unit, DC-AC converting unit and low pass filter.
Preferably, transducer has protective device of leakage current.
Preferably, power module also comprises and prevents that the lightning-protection module that is struck by lightning, this lightning-protection module from being to bear because the protective circuit of the puncture that thunderbolt causes.
Preferably, the shield terminal controller is connected with administration module through serial ports, parallel port, Ethernet interface, optical fiber interface, IEEE1394 interface, blue tooth interface or infrared interface.
Preferably, shield terminal is provided with the power supply signal switch, thereby can control its operating state through the break-make of its power supply of wireless remote control.
Compared with prior art, the present invention has following beneficial effect:
Native system is all realized modularized design, so that safeguard and the development of complying with technology is easy to change.Power module adopts solar power generation, and simultaneously, the modular design of the same employing of reserve cell group so that the storage battery of novel energy-conservation high performance-price ratio is changed, then is unlikely to along with the development need of technology is upgraded the whole generating system again.Therefore; Solar powered shielding harness of the present invention is that a kind of economic and practical, safe and reliable solar energy shields the watch-dog system; It has not only satisfied the convenience of establishing of shelving in prison, different detention house, have simultaneously that cost is cheaper, reliability and a higher advantage of fail safe, optimized overcome the prison, detention house take precautions against technically with personnel's strick precaution on leak; Simultaneously because its high reliability and non-maintaining property; Greatly reduced the energy that the prison superintendent of institute need disperse, and administrative staff's danger, for transforming the inmate safer environment is provided.
Adopt when solar powered, need not output become to exchange and save inversion module, simultaneously,, reduced exchanging the transformation module that becomes direct current, simplified technology, improved efficient and saved resource, reduced cost at the power unit of shield terminal.Native system need not to arrange again power circuit, and simultaneously the solar energy shielding harness is separate isolated with extraneous power supply fully, i.e. any work that can not have influence on shield terminal unusually of public electric wire net has improved the reliability and security of shielding harness.
Description of drawings
Fig. 1 is the structural representation of an execution mode of prison, detention house of the present invention special solar power supply type wireless communication signals shielding harness;
Fig. 2 is the structural representation of solar-electricity source module one preferred embodiments shown in Figure 1;
Fig. 3 is a converter structure sketch map shown in Figure 2;
Fig. 4 is the schematic perspective view of prison, detention house of the present invention special solar power supply type wireless communication signals shielding harness.
Embodiment
As shown in Figure 1; Prison, detention house of the present invention special solar power supply type wireless communication signals shielding harness comprises: the shield terminal 11 that one or more dispersions are provided with; Each shield terminal 11 all is connected to shield terminal controller 12 through information transmission medium, and shield terminal controller 12 then passes through the control signal of serial ports, parallel port, Ethernet interface, optical fiber interface, IEEE1394 interface, blue tooth interface or receiving management modules 13 such as infrared interface, E1, RS 485, RS232, HFC port, satellite communication and/or microwave; Convert environmental energy such as solar energy, wind energy into electric energy, and the power module 14 of working power is provided for shield terminal 11 and shield terminal controller 12; And when power module 14 can't operate as normal, the back-up source 15 of working power is provided for shield terminal 11 and shield terminal controller 12.
Described information transmission medium can adopt tangible medium, such as power line, ethernet line, optical fiber, the telephone wire of power carrier transmission data, coaxial cable etc.; Perhaps invisible medium is like Bluetooth transmission passage, Infrared Transmission passage, wireless transfer channel etc.
Power module 14 comprises: energy conversion module 141, intelligent controller 142, deposit energy module 143 and transducer 144.Solar energy converts into after the electric energy through energy conversion module 141, through intelligent controller 142 controls with power storage at deposit energy module 143, will lay in electric energy that energy module 143 exports by transducer 144 again and convert the target supply voltage to and offer load.
Seeing that the most areas of China are abundant sunshines, and the hours of daylight is longer, and the comprehensive utilization of solar energy has also obtained certain achievement.Therefore, the present invention preferably utilizes the power source of solar energy as shield terminal 11.
Wherein, energy conversion module 141 adopts solar module, and it is used for converting the emittance of solar energy into electric energy, or is sent to accumulators store, or promotes loaded work piece.Solar module is made up of one or more solar cells.Solar module contains the solar battery sheet of a plurality of employing high efficiency monocrystalline silicon or polycrystal silicon cell technology.
Deposit energy module 143 comprises storage battery and to the battery charger of charge in batteries.Storage battery is generally lead-acid battery, also available Ni-MH battery, plumbous cadmium cell, lithium battery, vanadium cell, photochemical cell and follow-up novel other reserve cells etc.The electrical power storage of solar module being exported by battery charger control is discharged electric energy by storage battery when needs provide electric energy loaded to storage battery again.
Storage battery can or compose in parallel by one or the series connection of many electric power storage batteries, and the battery types of deposit energy module 143 comprises dark circular form lead acid accumulator, sealed lead-acid battery, common opening lead acid accumulator and nickel-cadmium alkaline battery etc.Wherein dark circular form lead acid accumulator is mainly used in the field solar energy photovoltaic power supply system.
Intelligent controller 142 is connected between the input of output and storage battery and battery charger of solar module, and it is used to control the whole system operation state, and protection deposit energy module 143 overcharges, overdischarge.
In conjunction with shown in Figure 2, because that native system is installed in is outdoor,, lightning-protection module 22 also need be set reaches and prevent thunderbolt in order to improve the fail safe of system, bear at area with more lightning activities because the circuit protection of the puncture that causes of thunderbolt.26 pairs of control transformation devices 144 of shield terminal control centre control, make input voltage, the currents match of itself and shield terminal with output voltage and electric current transformer 23.The output of storage battery 16 and battery charger links to each other with the transducer input, and the electric energy after 142 pairs of solar module conversions of intelligent controller is simultaneously deposited storage battery 16 and controlled, and charging and discharging of accumulator is managed.
The present invention is mainly used in detention house and the prison system, makes the power supply of shield terminal be electric power system independently, can not receive the power supply restriction of public electric wire net, ensures independent, the trouble free service of shield terminal.
In conjunction with shown in Figure 3.Transducer 144 comprises DC-DC (DC-DC) converting unit and AC/DC (DC-AC) converting unit and low pass filter.
At first, the DC-DC converting unit is to improve or reduce the voltage of input, and its output is adjusted to maximum efficient.And the operation principle of DC-AC converting unit is: after some extra voltage bufferings, the corresponding metal oxide semiconductor field effect transistor converts direct current to alternating current, and this frequency range is generally 18KHZ to 20KHZ.At last, a low pass filter makes the AC voltage after its conversion be smoothed to a sinusoidal signal, thereby produces the direct current output of a grid frequency.
Because the input of power source is not high enough usually, so shielding harness of the present invention can be utilized a transformer or a DC-DC converting unit boosted voltage in AC side.Because itself there is electrical insulation in the DC-AC converting unit, so have the full-bridge DC-DC converting unit of the phase shifts of ZVT, can be equivalent to a transformer.In addition, transducer 144 has protective device of leakage current (RCD), can monitor all phase currents, meeting starting relay when electric current surpasses certain value, owing to can overcome the hidden danger of leakage current, RCD has improved the safety of whole electric supply system.
Shield terminal 11 produces specific electromagnetic signal; Radome of structure in the place secret, cellular mobile network overlay area with carrying out information security; Form a bulk shield zone; Make mobile phone in this zone can't receive the communication downstream signal of mobile cellular base station, thereby eliminate the negative effect that mobile phone produces, restoring communication at once after mobile communication facility leaves the blind zone.Little process chip, digital-to-analogue-analog-to-digital conversion (A/D that intelligent controller in the shield terminal 11 adopts high-speed data to handle; D/A) chip; High speed data transmission line road and other auxiliary circuits; Make the status data of its work can be sent to shield terminal controller 12 in real time, be uploaded to administration module 13 by shield terminal controller 12 again, the keeper of administration module 13 is handled shield terminal 11 operating states and warning information etc. timely and conveniently.And can regulate automatically by 13 pairs of shield terminals 11 of administration module, shield terminal 11 is produced and the corresponding screening frequencies of destinations traffic frequency range, the mobile communication signal that reaches all types and frequency range shields in the blind zone.
The shield terminal 11 of 12 pairs of all accesses of shield terminal controller carries out monitoring management and maintenance with power module 14: all state informations of shield terminal 11 and power module 14 are sent to shield terminal controller 12 through signalling channel and handle, simultaneously shield terminal controller 12 with this information uploading to administration module 13.Send control command by administration module 13; Running parameter and state to each shield terminal 11 carries out regulating and controlling respectively; For example frequency produces the ruuning situation of each unit such as scope, intensity, aerial angle, and warning message (comprising the abnormal work alarm, fault alarm, alarm for power-off of components and parts etc.); Simultaneously; 12 pairs of energy conversion modules 141 of shield terminal controller, deposit energy module 143 carry out 24 hours digital supervisions; Under power module 14 can't the situation of normal power supply; Electric power system is switched to back-up source 15 or uses the low-voltage power gauze to supply power, to guarantee the normal operation work of all loads.
Can know that by foregoing description native system is all realized modularized design, so that safeguard and be easy to replacing.Power module 14 can suit measures to local conditions to adopt solar powered; Simultaneously; Energy conversion module 141 in the power module 14 all is a standalone module with deposit energy module 143, and the replacing of energy conversion module 141 can not influence follow-up all devices work, the modular design of the same employing of reserve cell group; So that the storage battery of novel energy-conservation high performance-price ratio is changed, then be unlikely to along with the development need of technology is upgraded whole electric power system again.
In described shielding harness, have back-up source 15, it is in order to prevent to occur unusually influencing under can't the situation of normal power supply at energy-saving power generation system (or power module 14) work of shielding harness; The low voltage electric network that back-up source includes other mechanical generators or inserted can in time switch as required, normally moves with all elements that guarantee shielding harness.
According to shown in Figure 4; In order to reduce the error in the data transmission procedure; And in order to guarantee its fail safe and non-maintaining; Solar electric power supply system is combined to be integrally formed with shield terminal, promptly is that the one side at least at shield terminal is equipped with solar module 21, and solar module 21 becomes electric energy with the solar energy converting of its reception and directly exports the electric energy of each element needs of inside of shield terminal through controller and battery; Drive the work of each module; Inverter structure and the variable-frequency variable-voltage module of shield terminal that this has just saved in the solar energy system have so just guaranteed the integration of the shield terminal that the prison, detention house is special-purpose, make each parts have long useful life and non-maintaining characteristics long-term in exposing to the weather.
Certainly, the area of solar cell panel assembly 21 can also be bigger than the area of shield terminal one side, to guarantee working long hours of shield terminal more fully.
The above is merely preferred embodiment of the present invention, and not in order to restriction the present invention, the object of described shielding simultaneously is except mobile phone, and all right other wireless communication facility include but not limited to mobile phone.All any modifications of within spirit of the present invention and principle, being done, be equal to replacement and improvement etc., all should be included within protection scope of the present invention.