CN202421820U - Insulating characteristic monitoring system of rail transit shielding door - Google Patents
Insulating characteristic monitoring system of rail transit shielding door Download PDFInfo
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- CN202421820U CN202421820U CN201120564998XU CN201120564998U CN202421820U CN 202421820 U CN202421820 U CN 202421820U CN 201120564998X U CN201120564998X U CN 201120564998XU CN 201120564998 U CN201120564998 U CN 201120564998U CN 202421820 U CN202421820 U CN 202421820U
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- rail transit
- screen door
- insulating
- sensor
- insulation characterisitic
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Abstract
The utility model discloses an insulating characteristic monitoring system of a rail transit shielding door. The insulating characteristic monitoring system comprises a background system and a plurality of sensors, wherein the sensors are connected with the background system and used for detecting insulating characteristics of the shielding door; the insulating characteristic monitoring system is characterized in that the background system comprises a database module and a monitoring module, wherein the database module is used for saving detecting data of the sensors; and the monitoring module is used for monitoring the detecting data of the sensors. According to the utility model, the background system is connected with the multiple sensors by a thing internet technology and the situation of the current on a potential line is detected by the sensors and the like so that the insulating properties of an insulating material are monitored. Therefore, the insulating characteristics of the shielding door of the whole rail transit are monitored in real time and historical data are saved to provide possibility for various analysis and playbacks. According to the utility model, preventive maintenance and overhauling of the insulating properties of the underground shielding door can be really achieved; and attenuation situations of the insulating properties of the shielding door are instantaneously mastered so that blind inspection is avoided and field maintenance cost is reduced.
Description
Technical field
The utility model belongs to automation field, is specifically related to a kind of screen door in rail transit insulation characterisitic supervisory system.
Background technology
The screen door of track traffic is a kind of advanced person's an energy saving and environment friendly ring control pattern; It is separated the platform zone at station on whole platform length with the driveway zone, this has not only eliminated the passenger and has missed the hazards that fall into track; Simultaneously because effective isolation in platform and tunnel; Blocked the exchange between the air-conditioning wind in the air and station in the tunnel, made the station become an independently air-conditioning place, helped cutting down the consumption of energy, energy savings.Reduce the influence of train operation noise and piston blast simultaneously to the passenger.Shield door brings good visual enjoyment as together beautiful barrier to the passenger, and a safety, comfortable waiting environment are provided.
Vehicle in use and walking rail equipotential, ceiling voltage is DC90V or DC120V.Because mostly the shield door door body structure be metallic conductor, for the passenger safety that guarantees to get on and off, shield door is carried out equipotential with track through equipotential line be connected.Its structure is as shown in Figure 1.
Vehicle is under normal operation situation, and conference has the DC voltage of DC90V or DC120V.After screen door connect rail, if screen door is not carried out insulating mounting, the backflow of electric power system will flow to the earth through shield door, causes the corrosion to station main body steel construction.Regulation in " metro stray current corrosion protection technology rules ": the stray current electric current of subway (fan's stream) has bigger corrosive attack to urban architecture and subway itself; Be the restriction metro stray current; Reduce and its adverse effect of elimination, must take safeguard procedures.To platform screen door take and station building structure between insulating mounting, with the stray current that prevents electric power system through screen door corrosion station structure.
Subway shield door system insulation situation present situation: though screen door has been done a lot of insulation processing; But transform in advance in the process of using with the later stage at screen door; Insulation values between shield door and the station building structure is descending day by day, will be to station building structure generation harm less than the 0.5M Ω of designing requirement like insulation values.
The insulation values main reasons for decrease has:
(1) heat affecting
During train dwelling, vehicle bottom and top have great amount of heat energy to discharge, and heat extraction position and insulation processing position are approaching, along with temperature raises, and the insulator deliquescing between shield door and the station building structure, its shearing strength can progressively be lost.When temperature surpasses the ratings of insulator, will cause insulation degradation (lost of life), also possibly cause flow or charing, impel the partial fracture of insulator.
(2) electric influence
When insulating material bore the electromagnetic field that is produced by subway, the surface of insulating material or internal voids can discharge.Arc and the ion motion that is produced that discharge time and again will seriously corrode insulating material, make its decreasing insulating.
(3) influence that causes of environmental factor
Around the insulation processing position, the dust in the subway tunnel, corrosive gas, moisture, the oils of adhering to and radioactive ray etc. also can quicken the aging of insulator.
Therefore, the insulating property that detect and monitor insulating material immediately have very important meaning for the security of operation of guaranteeing track traffic.And existing, the device that directly detects to insulating material not only costs an arm and a leg but also complicated operation, accuracy in detection are not high.
The utility model content
The utility model provides a kind of solution of the above problems, and a kind of overall monitor, a kind of screen door in rail transit insulation characterisitic supervisory system that automaticity is high are provided.
The technical scheme of the utility model provides a kind of screen door in rail transit insulation characterisitic supervisory system; It comprises the sensor of background system and several detection shield door insulation characterisitics that are connected said background system; It is characterized in that: said background system comprises the DBM of the detection data of preserving said sensor, monitors the monitoring module of the detection data of said sensor.
Preferably, said sensor comprises current detection module, alarm unit, signal output apparatus, communicating circuit and main control unit, and said current detection module, alarm unit, signal output apparatus and communicating circuit all are connected said main control unit.
Preferably, said current detection module comprises the Hall linear element, amplifies follow circuit and signal sample circuit.
Preferably, said communicating circuit comprises the RS485 general-purpose interface.
Preferably, said alarm unit comprises acoustic-optic alarm.
Preferably, said current detection module, alarm unit, main control unit, signal output apparatus and communicating circuit all are encapsulated in the all-metal shell.
Preferably, said communicating circuit comprises wireless communication apparatus, and said background system is connected said sensor through the mode with said wireless communication apparatus wireless telecommunications.
Preferably, it also comprises the accumulator to said current detection module, alarm unit, main control unit, signal output apparatus and communicating circuit power supply.
A kind of screen door in rail transit insulation characterisitic supervisory system of the utility model connects a plurality of sensors through technology of Internet of things, through the situation of electric current on the sensor equipotential line, thus the insulating property of monitoring insulating material.Thereby realize the insulation characterisitic of the shield door of whole rail traffic is monitored and historical data is preserved in real time, for various analyses and playback provide possibility.A kind of screen door in rail transit insulation characterisitic supervisory system of the utility model can really realize the preventive maintenance and the maintenance of subway shield door system insulating property; The instant attenuation of grasping the insulating property of shield door, thus inspection blindly, the on-the-spot maintenance cost of reduction avoided.
Description of drawings
Fig. 1 is the structural representation of current track traffic shield door;
Fig. 2 is the structural representation of a kind of screen door in rail transit insulation characterisitic supervisory system of the utility model;
Fig. 3 is the structural representation of sensor;
Fig. 4 is the use synoptic diagram of sensor;
Fig. 5 is the workflow diagram of sensor.
Embodiment
Embodiment in the face of the utility model is described in further detail down.
As shown in Figure 2, a kind of screen door in rail transit insulation characterisitic supervisory system of the utility model is to wear out and descend to the subway shield door insulating property system of real-time monitoring is provided.It adopts a kind of novel sensor, through detecting the current value of the bonding wire between shield door and the track, judges the insulation situation of shield door.As the situation of shield door ground connection appears; The backflow of electric power system will flow to the earth through the bonding wire shield door of flowing through; Sensor is to current signal; Transmission network through wired or wireless is transferred to background system, supplies the operations staff to monitor through monitoring module so that in time handle.The monitoring module of background system can be provided with threshold values, surpasses threshold values if detect data, then controls the warning system of sensor and reports to the police.Detecting data in addition can be saved in the DBM in real time, convenient playback in the future or analysis-by-synthesis.
As shown in Figure 3, the used sensor of the utility model is made up of Hall linear element, amplification follow circuit, signal sample circuit, main control unit, signal output apparatus, alarm unit, communicating circuit.
Hall linear element: be a kind of Magnetic Sensor based on Hall effect.Hall linear element precision is high, the linearity is good.Can detect magnetic field and variation thereof with them, can in the various occasions relevant, use with magnetic field.Owing to there is magnetic field around the electrified wire, its size is directly proportional with electric current in the lead, so can utilize Hall element to measure magnetic field, just can confirm the size of current in wire.
Amplify follow circuit: be to be used for the magnitude of voltage amplification that the induction of Hall linear element is exported and stable output valve is provided.
Signal sample circuit: be to be used for the stable magnitude of voltage that amplifies follow circuit output through analog to digital conversion output digital quantity signal.
Main control unit: main control unit is made up of one 16 single-chip microcomputer and electric power system as the core component of this sensor, and the digital quantity signal, the driving alarm unit that are used to handle after modulus is sampled are exported effective digital signal simultaneously.
Signal output apparatus: the digital signal to main control unit output is done digital-to-analog conversion, gives background system with 4-20mA electric current or 0-5V voltage signal reflection insulated electro flow valuve.
Alarm unit: the signal that collects when main control unit is during greater than the alarm threshold value of inner setting, and by the main control unit driving alarm unit of giving an order, alarm unit can be acoustic-optic alarms such as sound equipment, light, lamp.
Communicating circuit: the digital signal that main control unit need be exported is passed through fixing communication protocol with RS485 level form and background system communication.
Current detection module, alarm unit, main control unit, signal output apparatus and communicating circuit all are encapsulated in the all-metal shell, thereby strengthen its screening ability greatly, improve the accuracy that detects.
Can be designed to it portablely in addition as required,, thereby increase the scope of its use through Internet of Things and background system communication.The accumulator that increases corresponding wireless communication apparatus and power supply gets final product.
The utility model in use, and is as shown in Figure 4.For example, certain city underground operation branch office station is set up upstream side screen door and downlink side screen door respectively, and every side shield door and rail all have a bonding wire.Sensor directly is sleeved on the bonding wire.When the screen door decreasing insulating; Have electric current on the bonding wire and increase sign; Sensor can monitor numerical value and send to the monitoring module of background system in the very first time this moment, supplied it to make early warning and judged, to the operations staff strong maintenance foundation was provided.
The workflow of the sensor of the utility model is as shown in Figure 5, and the current data by the Hall linear element is gathered equipotential line collects the conversion of the laggard line data line style of data, then current data is exported through signal output apparatus; Or through the RS485 interface the long-range background system of exporting to of signal, when supplying in fact the monitoring and save historical data.
Above embodiment is merely the utility model a kind of embodiment wherein, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection domain of the utility model.Therefore, the protection domain of the utility model patent should be as the criterion with accompanying claims.
Claims (8)
1. screen door in rail transit insulation characterisitic supervisory system; It comprises the sensor of background system and several detection shield door insulation characterisitics that are connected said background system; It is characterized in that: said background system comprises the DBM of the detection data of preserving said sensor, monitors the monitoring module of the detection data of said sensor.
2. a kind of screen door in rail transit insulation characterisitic supervisory system according to claim 1; It is characterized in that: said sensor comprises current detection module, alarm unit, signal output apparatus, communicating circuit and main control unit, and said current detection module, alarm unit, signal output apparatus and communicating circuit all are connected said main control unit.
3. a kind of screen door in rail transit insulation characterisitic supervisory system according to claim 2 is characterized in that: said current detection module comprises the Hall linear element, amplifies follow circuit and signal sample circuit.
4. a kind of screen door in rail transit insulation characterisitic supervisory system according to claim 2, it is characterized in that: said communicating circuit comprises the RS485 general-purpose interface.
5. a kind of screen door in rail transit insulation characterisitic supervisory system according to claim 2, it is characterized in that: said alarm unit comprises acoustic-optic alarm.
6. a kind of screen door in rail transit insulation characterisitic supervisory system according to claim 2, it is characterized in that: said current detection module, alarm unit, main control unit, signal output apparatus and communicating circuit all are encapsulated in the all-metal shell.
7. a kind of screen door in rail transit insulation characterisitic supervisory system according to claim 2; It is characterized in that: said communicating circuit comprises wireless communication apparatus, and said background system is connected said sensor through the mode with said wireless communication apparatus wireless telecommunications.
8. a kind of screen door in rail transit insulation characterisitic supervisory system according to claim 7 is characterized in that: it also comprises the accumulator to said current detection module, alarm unit, main control unit, signal output apparatus and communicating circuit power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120564998XU CN202421820U (en) | 2011-12-30 | 2011-12-30 | Insulating characteristic monitoring system of rail transit shielding door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120564998XU CN202421820U (en) | 2011-12-30 | 2011-12-30 | Insulating characteristic monitoring system of rail transit shielding door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202421820U true CN202421820U (en) | 2012-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120564998XU Expired - Fee Related CN202421820U (en) | 2011-12-30 | 2011-12-30 | Insulating characteristic monitoring system of rail transit shielding door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202421820U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372561A (en) * | 2015-10-08 | 2016-03-02 | 宁波南车电气设备有限公司 | A novel shield door insulation monitoring and early warning system |
| CN105988039A (en) * | 2015-02-10 | 2016-10-05 | 刘春梅 | Subway shield door insulation monitoring system and method |
| CN108205270A (en) * | 2016-12-16 | 2018-06-26 | 无锡市蜂鸣屏蔽设备科技有限公司 | A kind of shield door back-stage management method |
-
2011
- 2011-12-30 CN CN201120564998XU patent/CN202421820U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105988039A (en) * | 2015-02-10 | 2016-10-05 | 刘春梅 | Subway shield door insulation monitoring system and method |
| CN105372561A (en) * | 2015-10-08 | 2016-03-02 | 宁波南车电气设备有限公司 | A novel shield door insulation monitoring and early warning system |
| CN108205270A (en) * | 2016-12-16 | 2018-06-26 | 无锡市蜂鸣屏蔽设备科技有限公司 | A kind of shield door back-stage management method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20151230 |
|
| EXPY | Termination of patent right or utility model |