CN213986614U - Railway signal interval station-connection voltage outdoor monitoring equipment - Google Patents
Railway signal interval station-connection voltage outdoor monitoring equipment Download PDFInfo
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- CN213986614U CN213986614U CN202022469229.3U CN202022469229U CN213986614U CN 213986614 U CN213986614 U CN 213986614U CN 202022469229 U CN202022469229 U CN 202022469229U CN 213986614 U CN213986614 U CN 213986614U
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Abstract
The utility model provides a railway signal section station-connection voltage outdoor monitoring device, which comprises a station-connection voltage acquisition circuit and a microcontroller, wherein the input end of the station-connection voltage acquisition circuit is used for connecting a corresponding wiring terminal of an internal cable of a section station-connection junction box so as to acquire a cable voltage value; and the output end of the station-connection voltage acquisition circuit is used for being connected with the microcontroller so as to transmit the acquired cable voltage value to the microcontroller. This railway signal interval station allies oneself with outdoor monitoring facilities of voltage has satisfied electric affairs section, work area and has managed and the actual demand of plant maintenance to cable voltage real-time status in the branch box, is convenient for know the operational aspect of station allies oneself with equipment, and the convenience is in time maintained.
Description
Technical Field
The utility model relates to an outdoor monitoring of railway signal, specific theory has related to an outdoor monitoring facilities of railway signal interval station allies oneself with voltage.
Background
The inter-region station connection junction box is in an outdoor environment, is positioned between two adjacent stations and is far away from the inside of the station, so that the daily maintenance is difficult to a certain extent; when the voltage of the cable in the distribution box goes wrong, if the voltage cannot be found in time, the equipment of the station is influenced, the equipment of an adjacent station is possibly influenced, and a large potential safety hazard is caused.
Therefore, cable voltage monitoring for the inter-bay substation junction boxes is necessary, but manual testing has been the main for a long time. However, manual testing not only has huge workload, but also fails to find faults in time; after the manual test finds the fault, no historical curve is monitored, so that the fault reason cannot be analyzed, and the difficulty is caused in the aspect of troubleshooting.
In order to solve the above problems, people are always seeking an ideal technical solution.
Disclosure of Invention
The utility model aims at the not enough of prior art to a railway signal interval station allies oneself with voltage outdoor monitoring facilities is provided.
In order to realize the purpose, the utility model discloses the technical scheme who adopts is: the outdoor monitoring equipment for the station-connection voltage of the railway signal interval comprises a station-connection voltage acquisition circuit and a microcontroller, wherein the input end of the station-connection voltage acquisition circuit is used for connecting corresponding wiring terminals of cables inside an interval station-connection junction box so as to acquire the voltage value of the cables; and the output end of the station-connection voltage acquisition circuit is used for being connected with the microcontroller so as to transmit the acquired cable voltage value to the microcontroller.
The utility model has the advantages that:
1) the railway signal section station-connection voltage outdoor monitoring equipment can facilitate workers to monitor the voltage data of the cable inside the railway section station-connection junction box in real time, facilitate the understanding of the operation condition of the station-connection equipment, facilitate the timely maintenance, and meet the actual requirements of an electric service section and a work area on the real-time state management of the cable voltage in the junction box and the equipment maintenance;
2) the indoor railway centralized monitoring platform carries out centralized monitoring and storage on the voltage value of the cable, and provides reference basis for fault reason analysis and fault troubleshooting after a fault is found.
Drawings
Fig. 1 is a schematic block diagram of a first embodiment of the present invention;
fig. 2 is a schematic block diagram of a second embodiment of the present invention;
fig. 3 is a schematic block diagram of the station-to-station voltage acquisition circuit of the present invention;
fig. 4 is a schematic diagram of the station-to-station voltage acquisition circuit of the present invention;
fig. 5 is a schematic diagram of the boost voltage generation circuit of the present invention.
Detailed Description
The technical solution of the present invention will be described in further detail through the following embodiments.
Example 1
The outdoor monitoring equipment for the station-connection voltage of the railway signal interval comprises a station-connection voltage acquisition circuit and a microcontroller, wherein the input end of the station-connection voltage acquisition circuit is used for connecting corresponding wiring terminals of cables inside an interval station-connection junction box so as to acquire the voltage value of the cables; and the output end of the station-connection voltage acquisition circuit is used for being connected with the microcontroller so as to transmit the acquired cable voltage value to the microcontroller.
It should be noted that, on the premise of not performing large structural modification on the inside of the junction box, the railway signal interval station-connection voltage outdoor monitoring equipment acquires voltage values of each cable inside the junction box so as to judge whether voltage signals inside the station are stable; when a problem occurs, the problem can be timely checked by judging a fault source, and meanwhile, the normal and safe work inside the junction box can be guaranteed.
It can be understood that the condition of the power supply signal in the station can be known by monitoring the voltage of the cable in the station connection distribution box; if the fault condition occurs, the staff can conveniently analyze and judge whether the fault source is from the station or the adjacent station through the collected value, and then timely take no-use strategies according to different conditions.
Further, the microcontroller is also in communication connection with a data summarizing chip, and the data summarizing chip is in communication connection with the indoor railway centralized monitoring platform through a PLC communication module and is used for transmitting the cable voltage value to the indoor railway centralized monitoring platform for centralized monitoring, as shown in the attached drawing 1.
It is understood that the entire device comprises three parts: PLC communication module, data gather chip and station and ally oneself with voltage signal acquisition circuit. Whole interval station allies oneself with outdoor monitoring facilities of voltage and relies on power cable to supply power, and PLC communication module communicates with indoor railway centralized monitoring platform through power cable, and does the voltage acquisition information that chip power supply and packing station allied oneself with voltage signal acquisition circuit upload is gathered to the data, and PLC communication module communicates through standard RS232 with the data chip that gathers. The data chip that gathers allies oneself with voltage acquisition circuit through standard RS485 communication connection station, and the data packing that allies oneself with voltage acquisition circuit collection in the station obtains is regularly uploaded data to PLC communication module, and the packing is put in order by PLC communication module again, gives indoor railway through power cable and concentrates monitoring platform. The station-connected voltage acquisition circuit acquires voltage data of cables in the interval station-connected junction box in real time and uploads voltage acquisition information in real time through a standard RS485 communication protocol.
Specifically, the microcontroller adopts an STM32F103 series single chip microcomputer, supports the acquisition of 12-bit AD, can ensure that the acquisition precision is less than or equal to 1 percent, and has stable long-time operation and lower power consumption; the data summarization chip adopts an STM32F103 series single chip microcomputer, and the model of the PLC communication module is MAX 79356; and the data summarizing chip and the microcontroller are communicated by an RS485 protocol by adopting a 485 communication chip, and the model of the 485 communication chip is ADM 2587.
Further, the microcontroller is connected with one or more station-connected voltage acquisition circuits and used for acquiring voltage values of cables inside one or more interval station-connected junction boxes in real time. Specifically, the data gathering chip is in communication connection with one, two, three or more station-to-station voltage acquisition circuits through standard RS 485. In one embodiment, the microcontroller is connected to four station-to-station voltage acquisition circuits, as shown in fig. 1.
It should be noted that, regarding the data acquisition of the voltage of the section station connection junction box, it is first required to ensure that in the acquisition process, the acquisition paths are isolated from each other, and each path station connection voltage acquisition circuit adopts an isolation power supply to supply power, so that the isolation power supply does not affect each other, the safe operation of the equipment is ensured to the maximum extent, and the normal operation of the station connection equipment is not affected.
Example 2
The embodiment provides a specific implementation mode of the station-connected voltage acquisition circuit.
As shown in fig. 3, the station-connected voltage acquisition circuit includes a voltage division circuit, a filter circuit, a first follower circuit, an optical coupling isolation circuit, a second follower circuit and a signal amplification circuit, an input end of the voltage division circuit is connected to a corresponding connection terminal of an internal cable of the inter-zone station-connected junction box through a first connection terminal and a second connection terminal, and an output end of the voltage division circuit is connected to an input end of the filter circuit; the output end of the filter circuit is connected with the input end of the optical coupling isolation circuit through the first following circuit, the output end of the optical coupling isolation circuit is connected with the input end of the signal amplification circuit through the second following circuit, and the output end of the signal amplification circuit is connected with pins of the microcontroller.
Further, the voltage dividing circuit comprises a first voltage dividing circuit and a second voltage dividing circuit, wherein the first voltage dividing circuit comprises a first fuse F8 and a first voltage dividing resistor R21 which are sequentially connected in series, and the second voltage dividing circuit comprises a second fuse F7, a thermistor PTC and a second voltage dividing resistor R68 which are sequentially connected in series; first fuse F8 still connects through first binding post the positive binding post of the interior cable of junction box is ally oneself with to the district station, second fuse F7 still connects through second binding post the negative binding post of the interior cable of junction box is ally oneself with to the district station.
It can be understood that the first voltage division circuit and the second voltage division circuit are provided with fuses, and when the current rises to a certain height and a certain height abnormally, the fuses are fused to cut off the current, so that the safety operation of the station-connected voltage outdoor monitoring equipment in the railway signal interval is protected.
Further, the filter circuit comprises an inductor L9, a first capacitor C28 and a first resistor R30, a first input end of the inductor L9 is connected to the first voltage divider circuit, a second input end of the inductor L9 is connected to the second voltage divider circuit, and the first capacitor C28 and the first resistor R30 are connected in parallel between a first output end and a second output end of the inductor L9.
It can be understood that the filter circuit carries out filtering processing on the initial voltage signal acquired by the voltage division circuit so as to improve the accuracy of outdoor monitoring of the station-connection voltage of the railway signal interval.
As shown in fig. 4, the first follower circuit employs a dual-input dual-output operational amplifier chip U7 and an auxiliary circuit, the optical coupler isolation circuit employs an optical coupler U8, and the second follower circuit and the signal amplification circuit employ a dual-input dual-output operational amplifier chip U8 and an auxiliary circuit, which are not described herein again.
Specifically, the types of the operational amplifier chip U7 and the operational amplifier chip U9 may be LM358 or other chips capable of implementing the above functions, and the present embodiment is not limited herein.
Example 3
This example differs from example 2 in that: the station-connected voltage acquisition circuit further comprises a boost voltage generation circuit, wherein the boost voltage generation circuit is connected between the filter circuit and the first follower circuit and used for providing boost voltage to convert a bipolar voltage signal into a unipolar voltage signal.
As shown in fig. 5, the boost voltage generating circuit includes a voltage converting chip U5 and a voltage stabilizing circuit connected to the voltage converting chip U5, wherein an output terminal VREF-1 of the voltage stabilizing circuit is connected to a terminal VREF-1 between the filter circuit and the first follower circuit.
It should be noted that the station-connected voltage acquisition circuit can acquire alternating-current voltage or direct-current voltage, and in order to avoid that an alternating-current voltage signal of a negative half shaft cannot be acquired and a complete alternating-current voltage signal cannot be acquired, the station-connected voltage acquisition circuit is further connected with the lifting voltage generation circuit, and the acquired alternating-current voltage signal is lifted to a positive half shaft, so that the outdoor monitoring accuracy of the station-connected voltage of a railway signal interval is improved.
Example 4
The present embodiment differs from the above embodiments in that: the microcontroller is also connected with an alarm circuit, and the microcontroller drives the alarm circuit to send alarm information when the voltage value of the cable is abnormal, as shown in the attached figure 2.
Specifically, the alarm circuit comprises a buzzer alarm circuit, the buzzer alarm circuit comprises a triode and a buzzer, the base of the triode is connected with a pin of the controller through a resistor, the collector of the triode is grounded, the emitter of the triode is connected with the control end of the buzzer, and the buzzer is also connected with a power supply end; the controller sends high and low levels to control the triode to be in a conducting or cut-off state, and then controls the alarm circuit to be opened or closed, so that the buzzer alarm circuit sends out buzzing when the cable voltage is abnormal, a worker is prompted to check in time, and more serious consequences are avoided.
Furthermore, the microcontroller is also in communication connection with a wireless communication module, and the wireless communication module is in communication interconnection with the indoor railway centralized monitoring platform.
Specifically, the wireless communication module may be a 5G communication module; the model of the 5G communication module may be Exynos5G or other models that can implement the above functions, and the implementation is not limited herein.
In other embodiments, the wireless communication module may also be a 4G communication module, a 3G communication module, a WiFi wireless communication module, or the like.
During actual installation, planning and preparation before installation are required in advance, and the installation of the station-connection voltage outdoor monitoring equipment can be carried out after the preparation is completed. Preparation before the installation, the installation space of equipment needs to be preset, because the installation equipment is large in size, and the installation is beside the rail, the cement platform poured in advance can be considered for the installation and fixation of the equipment, the laying of cables before the pouring is necessary, cable voltage detection lines with different numbers can be arranged according to the monitoring requirements of different stations, enough spare core lines are reserved, when the cables are laid, the line pipes are required to be threaded, and sealant is used for protecting the cables.
In a specific implementation mode, a new XB-1 box is erected beside a station junction box, and all modules used for monitoring are placed inside a signal transformer box, so that the problems of interference and the like inside the junction box are avoided.
After the signal transformer box is installed and placed, the internal terminal of the tested distribution box needs to be replaced by double-in and double-out from single-in and single-out under necessary conditions, so that the test cable can be conveniently accessed, and whether cable crimping is firm and reliable or not needs to be checked after the test cable is accessed.
After the installation is accomplished, can contact the indoor test that adds of machinery, add the electric back, can observe that data summarize chip power lamp and light up, the working light second dodges, and the certification device power supply is normal. At the moment, the station-to-station voltage information can be checked in the railway centralized monitoring platform in the mechanical room. The staff can set for collection voltage limit value in indoor railway centralized monitoring platform manual, if surpass the limit value, the device can report to the police.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (9)
1. The utility model provides an outdoor monitoring facilities of railway signal interval station allies oneself with voltage which characterized in that: the system comprises a station-connection voltage acquisition circuit and a microcontroller, wherein the input end of the station-connection voltage acquisition circuit is used for connecting corresponding wiring terminals of cables in a section station-connection junction box so as to acquire the voltage values of the cables; and the output end of the station-connection voltage acquisition circuit is used for being connected with the microcontroller so as to transmit the acquired cable voltage value to the microcontroller.
2. The railway signal inter-bay station-to-station voltage outdoor monitoring device of claim 1, wherein: the microcontroller is also in communication connection with a data gathering chip, and the data gathering chip is in communication connection with the indoor railway centralized monitoring platform through a PLC communication module and is used for transmitting the cable voltage value to the indoor railway centralized monitoring platform.
3. The railway signal inter-bay station-to-station voltage outdoor monitoring device of claim 1, wherein: the station connection voltage acquisition circuit comprises a voltage division circuit, a filter circuit, a first following circuit, an optical coupling isolation circuit, a second following circuit and a signal amplification circuit, wherein the input end of the voltage division circuit is connected with corresponding wiring terminals of an internal cable of the interval station connection junction box through the first wiring terminal and the second wiring terminal respectively, and the output end of the voltage division circuit is connected with the input end of the filter circuit; the output end of the filter circuit is connected with the input end of the optical coupling isolation circuit through the first following circuit, the output end of the optical coupling isolation circuit is connected with the input end of the signal amplification circuit through the second following circuit, and the output end of the signal amplification circuit is connected with pins of the microcontroller.
4. The railway signal inter-bay station-to-station voltage outdoor monitoring device of claim 3, wherein: the voltage division circuit comprises a first voltage division circuit and a second voltage division circuit, the first voltage division circuit comprises a first fuse and a first voltage division resistor which are sequentially connected in series, and the second voltage division circuit comprises a second fuse, a thermistor and a second voltage division resistor which are sequentially connected in series; the first fuse is further connected with a positive wiring terminal of an internal cable of the junction box of the interval station through a first wiring terminal, and the second fuse is further connected with a negative wiring terminal of the internal cable of the junction box of the interval station through a second wiring terminal.
5. The railway signal inter-bay station-to-station voltage outdoor monitoring device of claim 4, wherein: the filter circuit comprises an inductor, a first capacitor and a first resistor, wherein a first input end of the inductor is connected with the first voltage division circuit, a second input end of the inductor is connected with the second voltage division circuit, and the first capacitor and the first resistor are connected between a first output end and a second output end of the inductor in parallel.
6. The railway signal inter-bay station-to-station voltage outdoor monitoring device of claim 3, wherein: the station-connected voltage acquisition circuit further comprises a boost voltage generation circuit, wherein the boost voltage generation circuit is connected between the filter circuit and the first follower circuit and used for providing boost voltage to convert a bipolar voltage signal into a unipolar voltage signal.
7. The railway signal inter-bay station-to-station voltage outdoor monitoring device of claim 1, wherein: the microcontroller is also connected with an alarm circuit, and the microcontroller drives the alarm circuit to send alarm information when the voltage value of the cable is abnormal.
8. The railway signal inter-bay station-to-station voltage outdoor monitoring device of claim 1, wherein: the microcontroller is also in communication connection with a wireless communication module, and the wireless communication module is in communication interconnection with the indoor railway centralized monitoring platform.
9. The railway signal inter-bay station-to-station voltage outdoor monitoring device of claim 1, wherein: the microcontroller is connected with one or more station-connected voltage acquisition circuits and is used for acquiring voltage values of cables inside one or more interval station-connected junction boxes in real time.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022469229.3U CN213986614U (en) | 2020-10-30 | 2020-10-30 | Railway signal interval station-connection voltage outdoor monitoring equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022469229.3U CN213986614U (en) | 2020-10-30 | 2020-10-30 | Railway signal interval station-connection voltage outdoor monitoring equipment |
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| CN213986614U true CN213986614U (en) | 2021-08-17 |
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| CN202022469229.3U Active CN213986614U (en) | 2020-10-30 | 2020-10-30 | Railway signal interval station-connection voltage outdoor monitoring equipment |
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Effective date of registration: 20240428 Address after: 450001 No.188, science Avenue, high tech Industrial Development Zone, Zhengzhou City, Henan Province Patentee after: HENAN SPLENDOR SCIENCE & TECHNOLOGY Co.,Ltd. Country or region after: China Patentee after: HENAN HUIHUANG SOFTWARE CO.,LTD. Address before: 450001 No.188, science Avenue, high tech Industrial Development Zone, Zhengzhou City, Henan Province Patentee before: HENAN SPLENDOR SCIENCE & TECHNOLOGY Co.,Ltd. Country or region before: China |