CN204172929U - Subway platform security alerting system - Google Patents
Subway platform security alerting system Download PDFInfo
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- CN204172929U CN204172929U CN201420645385.2U CN201420645385U CN204172929U CN 204172929 U CN204172929 U CN 204172929U CN 201420645385 U CN201420645385 U CN 201420645385U CN 204172929 U CN204172929 U CN 204172929U
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Abstract
The utility model discloses a kind of subway platform security alerting system, comprise A range finder module (1), A micro controller system (2), B micro controller system (3), human body infrared induction module (4) and A voice module (5), described A range finder module (1), A micro controller system (2), B micro controller system (3), human body infrared induction module (4) connect in turn, and B micro controller system (3) is connected with A voice module (5).The utility model can realize the security alarm of subway platform, simultaneously lower relative to the testing cost of laser detection warning of the present utility model, thus can apply on a large scale.In addition, the utility model adopts HC-SR501 infrared sensor of the human body to replace laser transimitter and receiver to detect, and not only cost is lower, and sensitivity is better, and induction range is far away and extensive, and induction region can regulate voluntarily.
Description
Technical field
The utility model relates to a kind of warning, particularly relates to a kind of subway platform security alerting system.
Background technology
At present, subway platform security alarm is adopt laser to judge whether that someone crosses barrier line mostly, but this scheme can only judge above barrier line, whether someone passes through, but also have in barrier line front the distance of nearly 1m to detect, thus detect protection face less; In addition, adopt laser mode to detect barrier line and generally all adopt the intensive laser of multi beam to detect, just can reach the covering from top to bottom of barrier line place, thus cause testing cost high, and be of limited application.Thus be badly in need of making improvements.
Utility model content
The purpose of this utility model is, provide a kind of subway platform security alerting system, it effectively can solve problems of the prior art, especially high, the problem that is of limited application of laser detection cost.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of subway platform security alerting system, comprise A range finder module, A micro controller system, B micro controller system, human body infrared induction module and A voice module, described A range finder module, A micro controller system, B micro controller system, human body infrared induction module connect in turn, and B micro controller system is connected with A voice module.
Preferably, also comprise B range finder module, B range finder module is connected with A micro controller system, and B range finder module is located at platform place, thus after can realizing detecting that subway enters platform, controls to close whole subway platform security alerting system.
Preferred, also comprise C range finder module, C range finder module is connected with A micro controller system, and C range finder module is located at exit, thus can realize detect subway leaving from station after, recover whole security alerting system, and realize the detection of oppositely entering the station of subway.
Also comprise B voice module in the utility model, B voice module is connected with A micro controller system, thus can be implemented in before subway enters the station and send voice alarm signal passengers.
In aforesaid subway platform security alerting system, also comprise reset key, reset key is connected with A micro controller system, thus makes the whole warning of subway rear recovery leaving from station processing subway fault.
The first LED light is also comprised in the utility model, the first described LED light is connected with B micro controller system, thus when human body infrared induction module senses that someone crosses catch siding then indicator lamp glimmer, be convenient to find to be that the people in which region has crossed catch siding.
Preferably, described A micro controller system and B micro controller system adopt STC89C52RC chip, and A range finder module, B range finder module and C range finder module adopt infrared distance sensor, and human body infrared induction module adopts HC-SR501 infrared sensor of the human body.Because HC-SR501 infrared sensor of the human body can measure the distance of 8m farthest, and susceptibility is higher, relative laser launch and receiving device cheap many, and it is combined with voltage amplifier circuit and can realizes driving STC89C52RC chip operation; In addition, the infrared distance sensor cost adopted in the utility model is low, and it is combined with voltage contrasting amplified circuit and can realizes driving STC89C52RC chip operation.
Preferred, also comprise voltage contrasting amplified circuit, described voltage contrasting amplified circuit comprises: the power supply of 1 LM339 or LM393 voltage comparator, 1 51 Ω pull-up resistor, 1 30k Ω resistance, 1 10uF electric capacity, 1 103 slide rheostat, 2 5v and 1 switching mode aerotron; The end of oppisite phase of described LM339 or LM393 voltage comparator is connected with 103 slide rheostats, and in-phase end is connected with A range finder module, B range finder module or C range finder module, and mouth is connected with the input end of switching mode aerotron; An output head grounding of switching mode aerotron, the RC circuit that another mouth is formed with 51 Ω pull-up resistors, 30k Ω resistance and 10uF capacitances in series respectively and A micro controller system are connected, the power supply of 2 5v is connected with the reverse input end of LM339 or LM393 voltage comparator and the other end of 51 Ω pull-up resistors respectively, thus can be connected with infrared distance sensor and realize exporting 5V voltage driven STC89C52RC chip operation.
Preferred, also comprise voltage amplifier circuit, described voltage amplifier circuit comprises: A switching mode aerotron s8050, B switching mode aerotron s8050, the power supply of 2 102k Ω resistance and 1 5v, the input end of described A switching mode aerotron s8050 is connected with human body infrared induction module, an output head grounding of A switching mode aerotron s8050, another mouth is connected with the input end of B switching mode aerotron s8050 and one end of a 102k Ω resistance respectively, the other end of this 102k Ω resistance is connected with one end of another 102k Ω resistance, the other end of another 102k Ω resistance is connected with the mouth of B switching mode aerotron s8050 and B micro controller system respectively, another output head grounding of B switching mode aerotron s8050, the power supply of 5v is connected with 2 102k Ω resistance respectively, thus can be connected with HC-SR501 infrared sensor of the human body and realize exporting 5V voltage driven STC89C52RC chip operation.
In aforesaid subway platform security alerting system, also comprise power supply and voltage reduction module, voltage reduction module is connected with power supply, A micro controller system and B micro controller system respectively, thus higher power line voltage can be converted to 5V circuit working required voltage under the effect of voltage reduction module 11 and export, ensure that STC89C52RC chip, HC-SR501 infrared sensor of the human body, infrared distance sensor and voice module normally work.
Preferably, the utility model also comprises: the second LED light, LED light group, alarm button, C micro controller system and D micro controller system, described C micro controller system is connected with A micro controller system, the second LED light, alarm button and D micro controller system respectively, D micro controller system is connected with LED light group, thus can realize pressing alarm button when causing danger, passenger can be fled from by the direction indication of LED light group.
Compared with prior art, the utility model is by adopting A range finder module, A micro controller system, B micro controller system, human body infrared induction module and A voice module, described A range finder module, A micro controller system, B micro controller system, human body infrared induction module connect in turn, B micro controller system is connected with A voice module, thus the security alarm of subway platform can be realized, simultaneously lower relative to the testing cost of laser detection warning of the present utility model, thus can apply on a large scale.In addition, the utility model employing adopts HC-SR501 infrared sensor of the human body to replace laser transimitter and receiver to detect, and not only cost is lower, and sensitivity is better, and induction range is far away and extensive, and induction region can regulate voluntarily.In addition, the state by adopting the different conditions of A range finder module, B range finder module and C range finder module induction subway to realize controlling sacurity alarm system further in the utility model, thus further save cost.In addition, the voltage amplifier circuit designed by contriver, thus HC-SR501 infrared sensor of the human body can be made to realize driving STC89C52RC chip operation; By the voltage contrasting amplified circuit that contriver designs, thus infrared distance sensor can be made to realize driving STC89C52RC chip operation, make whole system performance more stable.
Accompanying drawing explanation
Fig. 1 is the circuit side connector frame schematic diagram of a kind of embodiment of the present utility model;
Fig. 2 is the circuit diagram of voltage amplifier circuit;
Fig. 3 is the circuit diagram of voltage contrasting amplified circuit.
Reference numeral: 1-A range finder module, 2-A micro controller system, 3-B micro controller system, 4-human body infrared induction module, 5-A voice module, 6-B range finder module, 7-C range finder module, 8-B voice module, 9-reset key, 10-power supply, 11-voltage reduction module, 12-voltage contrasting amplified circuit, 13-voltage amplifier circuit, 14-first LED light, 15-second LED light, 16-LED indicator lamp group, 17-alarm button, 18-C micro controller system, 19-D micro controller system.
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
Detailed description of the invention
Embodiment 1 of the present utility model: a kind of subway platform security alerting system, as shown in Figure 1, comprise A range finder module 1, A micro controller system 2, B micro controller system 3, human body infrared induction module 4 and A voice module 5, described A range finder module 1, A micro controller system 2, B micro controller system 3, human body infrared induction module 4 connect in turn, and B micro controller system 3 is connected with A voice module 5.Also comprise B range finder module 6, B range finder module 6 to be connected with A micro controller system 2.Also comprise C range finder module 7, C range finder module 7 to be connected with A micro controller system 2.Also comprise B voice module 8, B voice module 8 to be connected with A micro controller system 2.Also comprise reset key 9, reset key 9 is connected with A micro controller system 2.Also comprise the first LED light 14, the first described LED light 14 is connected with B micro controller system 3.Described A micro controller system 2 and B micro controller system 3 adopt STC89C52RC chip, and A range finder module 1, B range finder module 6 and C range finder module 7 adopt infrared distance sensor, and human body infrared induction module 4 adopts HC-SR501 infrared sensor of the human body.Also comprise voltage contrasting amplified circuit 12, described voltage contrasting amplified circuit 12 comprises: the power supply of 1 LM339 or LM393 voltage comparator, 1 51 Ω pull-up resistor, 1 30k Ω resistance, 1 10uF electric capacity, 1 103 slide rheostat, 2 5v and 1 switching mode aerotron; The end of oppisite phase of described LM339 or LM393 voltage comparator is connected with 103 slide rheostats, and in-phase end is connected with A range finder module 1, B range finder module 6 or C range finder module 7, and mouth is connected with the input end of switching mode aerotron; An output head grounding of switching mode aerotron, the RC circuit that another mouth is formed with 51 Ω pull-up resistors, 30k Ω resistance and 10uF capacitances in series respectively and A micro controller system 2 are connected, and the power supply of 2 5v is connected with the reverse input end of LM339 or LM393 voltage comparator and the other end of 51 Ω pull-up resistors respectively.Also comprise voltage amplifier circuit 13, described voltage amplifier circuit 13 comprises: A switching mode aerotron s8050, B switching mode aerotron s8050, the power supply of 2 102k Ω resistance and 1 5v, the input end of described A switching mode aerotron s8050 is connected with human body infrared induction module 4, an output head grounding of A switching mode aerotron s8050, another mouth is connected with the input end of B switching mode aerotron s8050 and one end of a 102k Ω resistance respectively, the other end of this 102k Ω resistance is connected with one end of another 102k Ω resistance, the other end of another 102k Ω resistance is connected with the mouth of B switching mode aerotron s8050 and B micro controller system 3 respectively, another output head grounding of B switching mode aerotron s8050, the power supply of 5v is connected with 2 102k Ω resistance respectively.Also comprise power supply 10 and voltage reduction module 11, voltage reduction module 11 is connected with power supply 10, A micro controller system 2 and B micro controller system 3 respectively.Also comprise: the second LED light 15, LED light group 16, alarm button 17, C micro controller system 18 and D micro controller system 19, described C micro controller system 18 is connected with A micro controller system 2, second LED light 15, alarm button 17 and D micro controller system 19 respectively, and D micro controller system 19 is connected with LED light group 16.
Embodiment 2: a kind of subway platform security alerting system, as shown in Figure 1, comprise A range finder module 1, A micro controller system 2, B micro controller system 3, human body infrared induction module 4 and A voice module 5, described A range finder module 1, A micro controller system 2, B micro controller system 3, human body infrared induction module 4 connect in turn, and B micro controller system 3 is connected with A voice module 5.Also comprise B range finder module 6, B range finder module 6 to be connected with A micro controller system 2.Also comprise C range finder module 7, C range finder module 7 to be connected with A micro controller system 2.Described A micro controller system 2 and B micro controller system 3 adopt STC89C52RC chip, and A range finder module 1, B range finder module 6 and C range finder module 7 adopt infrared distance sensor, and human body infrared induction module 4 adopts HC-SR501 infrared sensor of the human body.Also comprise voltage contrasting amplified circuit 12, described voltage contrasting amplified circuit 12 comprises: the power supply of 1 LM339 or LM393 voltage comparator, 1 51 Ω pull-up resistor, 1 30k Ω resistance, 1 10uF electric capacity, 1 103 slide rheostat, 2 5v and 1 switching mode aerotron; The end of oppisite phase of described LM339 or LM393 voltage comparator is connected with 103 slide rheostats, and in-phase end is connected with A range finder module 1, B range finder module 6 or C range finder module 7, and mouth is connected with the input end of switching mode aerotron; An output head grounding of switching mode aerotron, the RC circuit that another mouth is formed with 51 Ω pull-up resistors, 30k Ω resistance and 10uF capacitances in series respectively and A micro controller system 2 are connected, and the power supply of 2 5v is connected with the reverse input end of LM339 or LM393 voltage comparator and the other end of 51 Ω pull-up resistors respectively.Also comprise voltage amplifier circuit 13, described voltage amplifier circuit 13 comprises: A switching mode aerotron s8050, B switching mode aerotron s8050, the power supply of 2 102k Ω resistance and 1 5v, the input end of described A switching mode aerotron s8050 is connected with human body infrared induction module 4, an output head grounding of A switching mode aerotron s8050, another mouth is connected with the input end of B switching mode aerotron s8050 and one end of a 102k Ω resistance respectively, the other end of this 102k Ω resistance is connected with one end of another 102k Ω resistance, the other end of another 102k Ω resistance is connected with the mouth of B switching mode aerotron s8050 and B micro controller system 3 respectively, another output head grounding of B switching mode aerotron s8050, the power supply of 5v is connected with 2 102k Ω resistance respectively.Also comprise power supply 10 and voltage reduction module 11, voltage reduction module 11 is connected with power supply 10, A micro controller system 2 and B micro controller system 3 respectively.
Embodiment 3: a kind of subway platform security alerting system, as shown in Figure 1, comprise A range finder module 1, A micro controller system 2, B micro controller system 3, human body infrared induction module 4 and A voice module 5, described A range finder module 1, A micro controller system 2, B micro controller system 3, human body infrared induction module 4 connect in turn, and B micro controller system 3 is connected with A voice module 5.Also comprise the first LED light 14, the first described LED light 14 is connected with B micro controller system 3.
Embodiment 4: a kind of subway platform security alerting system, as shown in Figure 1, comprise A range finder module 1, A micro controller system 2, B micro controller system 3, human body infrared induction module 4 and A voice module 5, described A range finder module 1, A micro controller system 2, B micro controller system 3, human body infrared induction module 4 connect in turn, and B micro controller system 3 is connected with A voice module 5.Also comprise: the second LED light 15, LED light group 16, alarm button 17, C micro controller system 18 and D micro controller system 19, described C micro controller system 18 is connected with A micro controller system 2, second LED light 15, alarm button 17 and D micro controller system 19 respectively, and D micro controller system 19 is connected with LED light group 16.
Embodiment 5: a kind of subway platform security alerting system, as shown in Figure 1, comprise A range finder module 1, A micro controller system 2, B micro controller system 3, human body infrared induction module 4 and A voice module 5, described A range finder module 1, A micro controller system 2, B micro controller system 3, human body infrared induction module 4 connect in turn, and B micro controller system 3 is connected with A voice module 5.Also comprise B range finder module 6, B range finder module 6 to be connected with A micro controller system 2.Also comprise C range finder module 7, C range finder module 7 to be connected with A micro controller system 2.
Embodiment 6: a kind of subway platform security alerting system, as shown in Figure 1, comprise A range finder module 1, A micro controller system 2, B micro controller system 3, human body infrared induction module 4 and A voice module 5, described A range finder module 1, A micro controller system 2, B micro controller system 3, human body infrared induction module 4 connect in turn, and B micro controller system 3 is connected with A voice module 5.
The principle of work of a kind of embodiment of the present utility model:
As shown in Figure 1, suppose that platform is No. 2 positions, the position that subway enters the station before platform is No. 1 position, subway leave platform after position be No. 3 positions, a range finder module is placed in each position, 1,2, No. 3 position, the i.e. corresponding C range finder module 7 in the corresponding B range finder module in No. 1 position corresponding A range finder module 1, No. 2 positions 6, No. 3 positions.The position of subway in the whole departures process that enters the station residing for subway is determined in the effect of range finder module.If subway is also following interim, then three equal no signals of range finder module produce; If when subway is about to enter the station, then A range finder module 1 senses subway, transmit a signal to A micro controller system 2, A micro controller system 2 send information to B micro controller system 3 again, platform security alerting system now in platform starts normal work, opens platform security alerting system simultaneously and sends prompting by B voice module 8 and remind people's subway to be about to enter the station.When having people near barrier line or crossing barrier line, human body infrared induction module 4 can produce signal and drive A voice module 5 to send voice alarm, people are reminded to leave hazardous location, avoid dangerous generation, first LED light 14 brightens simultaneously, and convenient discovery is that the passenger in which region has crossed safe-guard line; After subway enters platform, send signal while B range finder module 6 senses subway to A micro controller system 2, now platform security alerting system quits work.When passenger loading and after leaving platform, subway can through C range finder module 7, after C range finder module 7 detects subway, by the time subway can send signal to A micro controller system 2 after thoroughly leaving, whole subway platform sacurity alarm system reverts to again the original operating state before subway enters the station, until next plows when iron enters within subway platform sacurity alarm system induction range again repeat said process.Certain No. 1 position can with No. 3 location swaps, that is when subway oppositely enters the station, subway platform sacurity alarm system also can normally work.When subway or platform there being unforeseen circumstances cause subway normally can not pass in and out platform, after subway leaves subway platform sacurity alarm system induction range, subway platform sacurity alarm system is made to return to original operating state when subway does not enter the station by reset key 9.In addition, when causing danger, alarm button 17 can be pressed report to the police, after C micro controller system 18 receives alerting signal, control the second LED light 15 to glimmer alarm passenger, simultaneously C micro controller system 18 sends a signal to D micro controller system 19, D micro controller system 19 and controls LED light group 16 and lighted, and passenger flees from according to the direction indication of LED light group 16.
In addition, operating voltage due to HC-SR501 infrared sensor of the human body is 5v, output high level is 3.3v, and output voltage can follow load reduction, and this voltage is the I/O mouth that can not drive B micro controller system 3, therefore contriver devises voltage amplifier circuit for the mouth of HC-SR501 infrared sensor of the human body, and voltage amplifier circuit have employed 2 switching mode aerotron s8050,2 102k Ω resistance, additional 5v operating voltage, physical circuit figure is as shown in Figure 2; Although the output voltage of HC-SR501 infrared sensor of the human body is 3.3v, but can normally work by master cock type aerotron s8050, therefore switching mode aerotron s8050 can carry out work by analog switch, and the high level of mouth is just enhanced as 5v.
In addition, for A range finder module 1, B range finder module 6 and C range finder module 7, the utility model have employed the price many infrared distance sensor cheap relative to tachogenerator, but the output voltage of infrared distance sensor is the continuous voltage signal changed along with testee distance, and maximum voltage is no more than 3v, all be not enough to drive A micro controller system 2, B micro controller system 3, therefore contriver devises voltage contrasting amplified circuit for infrared distance sensor.Voltage contrasting amplified circuit have employed 1 LM339 or LM393 voltage comparator, 1 51 Ω pull-up resistor, 1 30k Ω resistance, 1 10uF electric capacity, 1 103 slide rheostat, and the operating voltage of additional 5v, physical circuit as shown in Figure 3.Infrared distance sensor is connected on the in-phase end of LM339 or LM393 voltage comparator, and 103 slide rheostats are connected on the end of oppisite phase of LM339 or LM393 voltage comparator, and such output end voltage just by 103 slide rheostat adjustment, and can export the voltage of 5v.Wherein, 51 Ω resistance are pull-up resistors of voltage comparator, and 30k Ω resistance, 10uF capacitances in series become a RC circuit to be connected on mouth, play the effect of filtering.
Finally, in the utility model, power supply 10 is directly connected with voltage reduction module 11, namely higher power line voltage can be exchanged into 5V circuit working required voltage and exports under the effect of voltage reduction module 11, because the STC89C52RC chip that A micro controller system 2 and B micro controller system 3 adopt, the HC-SR501 infrared sensor of the human body that human body infrared induction module 4 adopts, the infrared distance sensor that A range finder module 1 adopts with B range finder module 6 and C range finder module 7, A voice module 5 is 4.5v-5.5v with the operating voltage of B voice module 8, A voice module 5 and B voice module 8 can adopt ISD1820 to record voice module, and be just in time 5v via the voltage that voltage reduction module 11 is changed, therefore STC89C52RC chip can be directly connected at the voltage after voltage reduction module 11 step-down, HC-SR501 infrared sensor of the human body, to ensure that they can normally work on infrared distance sensor and voice module.
Claims (10)
1. a subway platform security alerting system, it is characterized in that, comprise A range finder module (1), A micro controller system (2), B micro controller system (3), human body infrared induction module (4) and A voice module (5), described A range finder module (1), A micro controller system (2), B micro controller system (3), human body infrared induction module (4) connect in turn, and B micro controller system (3) is connected with A voice module (5).
2. subway platform security alerting system according to claim 1, is characterized in that, also comprises B range finder module (6), and B range finder module (6) is connected with A micro controller system (2).
3. subway platform security alerting system according to claim 2, is characterized in that, also comprises C range finder module (7), and C range finder module (7) is connected with A micro controller system (2).
4. subway platform security alerting system according to claim 3, is characterized in that, also comprises B voice module (8), and B voice module (8) is connected with A micro controller system (2).
5. subway platform security alerting system according to claim 4, is characterized in that, also comprises the first LED light (14), and described the first LED light (14) is connected with B micro controller system (3).
6. subway platform security alerting system according to claim 5, it is characterized in that, described A micro controller system (2) and B micro controller system (3) adopt STC89C52RC chip, A range finder module (1), B range finder module (6) and C range finder module (7) adopt infrared distance sensor, and human body infrared induction module (4) adopts HC-SR501 infrared sensor of the human body.
7. subway platform security alerting system according to claim 6, it is characterized in that, also comprise voltage contrasting amplified circuit (12), described voltage contrasting amplified circuit (12) comprising: the power supply of 1 LM339 or LM393 voltage comparator, 1 51 Ω pull-up resistor, 1 30k Ω resistance, 1 10uF electric capacity, 1 103 slide rheostat, 2 5v and 1 switching mode aerotron; The end of oppisite phase of described LM339 or LM393 voltage comparator is connected with 103 slide rheostats, in-phase end is connected with A range finder module (1), B range finder module (6) or C range finder module (7), and mouth is connected with the input end of switching mode aerotron; An output head grounding of switching mode aerotron, the RC circuit that another mouth is formed with 51 Ω pull-up resistors, 30k Ω resistance and 10uF capacitances in series respectively and A micro controller system (2) are connected, and the power supply of 2 5v is connected with the reverse input end of LM339 or LM393 voltage comparator and the other end of 51 Ω pull-up resistors respectively.
8. subway platform security alerting system according to claim 6, it is characterized in that, also comprise voltage amplifier circuit (13), described voltage amplifier circuit (13) comprising: A switching mode aerotron s8050, B switching mode aerotron s8050, the power supply of 2 102k Ω resistance and 1 5v, the input end of described A switching mode aerotron s8050 is connected with human body infrared induction module (4), an output head grounding of A switching mode aerotron s8050, another mouth is connected with the input end of B switching mode aerotron s8050 and one end of a 102k Ω resistance respectively, the other end of this 102k Ω resistance is connected with one end of another 102k Ω resistance, the other end of another 102k Ω resistance is connected with the mouth of B switching mode aerotron s8050 and B micro controller system (3) respectively, another output head grounding of B switching mode aerotron s8050, the power supply of 5v is connected with 2 102k Ω resistance respectively.
9. the subway platform security alerting system according to claim 7 or 8, it is characterized in that, also comprise power supply (10) and voltage reduction module (11), voltage reduction module (11) is connected with power supply (10), A micro controller system (2) and B micro controller system (3) respectively.
10. subway platform security alerting system according to claim 9, it is characterized in that, also comprise: the second LED light (15), LED light group (16), alarm button (17), C micro controller system (18) and D micro controller system (19), described C micro controller system (18) is connected with A micro controller system (2), the second LED light (15), alarm button (17) and D micro controller system (19) respectively, and D micro controller system (19) is connected with LED light group (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420645385.2U CN204172929U (en) | 2014-10-31 | 2014-10-31 | Subway platform security alerting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420645385.2U CN204172929U (en) | 2014-10-31 | 2014-10-31 | Subway platform security alerting system |
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| Publication Number | Publication Date |
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| CN204172929U true CN204172929U (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420645385.2U Expired - Fee Related CN204172929U (en) | 2014-10-31 | 2014-10-31 | Subway platform security alerting system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108877275A (en) * | 2018-06-29 | 2018-11-23 | 长沙润伟机电科技有限责任公司 | A kind of train arrives at a station detection system and its train |
| CN109286465A (en) * | 2018-09-26 | 2019-01-29 | 合肥通盾电子科技有限公司 | Support the radio signal shielding device and screen method of external alarm device input control |
| CN109450588A (en) * | 2018-09-26 | 2019-03-08 | 合肥通盾电子科技有限公司 | Support the radio signal shielding device and screen method of alarm device input and output control |
| CN111038551A (en) * | 2019-12-04 | 2020-04-21 | 南京信息职业技术学院 | Reminding device for starting emergency brake button of high-speed rail |
-
2014
- 2014-10-31 CN CN201420645385.2U patent/CN204172929U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108877275A (en) * | 2018-06-29 | 2018-11-23 | 长沙润伟机电科技有限责任公司 | A kind of train arrives at a station detection system and its train |
| CN109286465A (en) * | 2018-09-26 | 2019-01-29 | 合肥通盾电子科技有限公司 | Support the radio signal shielding device and screen method of external alarm device input control |
| CN109450588A (en) * | 2018-09-26 | 2019-03-08 | 合肥通盾电子科技有限公司 | Support the radio signal shielding device and screen method of alarm device input and output control |
| CN111038551A (en) * | 2019-12-04 | 2020-04-21 | 南京信息职业技术学院 | Reminding device for starting emergency brake button of high-speed rail |
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