CN210573347U - Function detection equipment for rim lubricating device controller - Google Patents
Function detection equipment for rim lubricating device controller Download PDFInfo
- Publication number
- CN210573347U CN210573347U CN201921394915.XU CN201921394915U CN210573347U CN 210573347 U CN210573347 U CN 210573347U CN 201921394915 U CN201921394915 U CN 201921394915U CN 210573347 U CN210573347 U CN 210573347U
- Authority
- CN
- China
- Prior art keywords
- device controller
- switch
- control mode
- lubricating device
- plc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Regulating Braking Force (AREA)
Abstract
The utility model relates to the technical field of urban rail transit, in particular to a function detection device of a wheel rim lubricating device controller, which comprises a wheel rim lubricating device controller, a PLC controller, a power module and a plurality of switches; the PLC is preset with a control mode of the rim lubricating device controller; the power supply module supplies power to the PLC and the wheel rim lubricating device controller; one end of each switch is connected with the power supply module, and the other end of each switch is connected with the PLC and the rim lubricating device controller; a switch simultaneously triggers the PLC controller and the wheel rim lubricating device controller, the PLC controller is connected with a display, the wheel rim lubricating device controller is connected with an oil injection indicating lamp, whether the oil injection signal time and the time displayed by the display and the light-emitting time of the oil injection indicating lamp are synchronous or not, and the function of the wheel rim lubricating device controller is achieved. The utility model discloses can simply accomplish the function detection of rim lubricating arrangement controller.
Description
Technical Field
The utility model relates to an urban rail transit technical field, in particular to function check out test set of rim lubricating arrangement controller.
Background
Since the contact between the rim of the wheel and the side edge of the rail when the train runs on the rail causes abrasion and noise and wears the rail, the train is generally provided with a rim lubrication system to solve the above problems. The existing wheel rim lubrication system comprises a wheel rim lubrication device and a wheel rim lubrication device controller; the wheel rim lubricating device controller is used for controlling the switch of the wheel rim lubricating device according to preset lubricating time and lubricating interval time; the wheel rim lubricating device is used for conveying lubricating oil to the wheel rim.
The control mode of the wheel rim lubricating device controller mainly comprises a straight track control mode and a curve control mode, the lubricating time and the lubricating interval time of the straight track control mode and the curve control mode are different, for example, the straight track control mode is oil injection time length 6S and oil injection interval time length 120S, and the curve control mode is oil injection time length 6S and oil injection interval time length 3S.
The method has the advantages that the fact that the rim lubricating device can work according to a set mode is guaranteed to be crucial to train operation, excessive lubrication is easily caused if the oil injection time is too long, idle sliding between wheels and rails can be caused, and monitoring of a braking system on the speed of a train is interfered; if the oil injection time is too short, the lubricating effect is poor, the abrasion of the wheel rail is aggravated, and the running safety of the train is seriously influenced. Therefore, in the maintenance of the train, the function of the rim lubricating device controller needs to be detected regularly to ensure that the working state of the rim lubricating device controller meets the operation requirement. However, in an actual maintenance site, the train stops in the garage, and the trigger start signal of the rim lubrication device controller cannot be provided, so that the function of the rim lubrication device controller cannot be tested.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a function check out test set of rim lubricating arrangement controller, the device need not to start the train, can detect the function of rim lubricating arrangement controller.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a function detecting apparatus of a rim lubricator controller, comprising: the wheel rim lubricating device comprises a wheel rim lubricating device controller, a PLC controller, a power supply module and a plurality of switches;
the PLC is preset with a control mode of the wheel rim lubricating device controller;
the power supply module is respectively connected with the PLC and the wheel rim lubricating device controller to realize power supply;
one end of each switch is connected with the power supply module, and the other end of each switch is respectively connected with the PLC and the rim lubricating device controller; one of the switches is used for simultaneously transmitting a trigger signal of a control mode to the PLC controller and the rim lubricating device controller when the switch is closed so that the PLC controller and the rim lubricating device controller enter the same control mode;
the PLC is connected with a display and is used for displaying the time and duration of the oil injection signal corresponding to the control mode;
the wheel rim lubricating device controller is connected with an oil injection indicator lamp HL01 and is used for emitting light according to the received oil injection signal in the control mode of the wheel rim lubricating device controller, so that the function detection of the wheel rim lubricating device controller is realized through the synchronization between the time and the duration of the oil injection signal displayed by the display and the time and the duration of the light emitting time of the oil injection indicator lamp.
Compared with the prior art, the utility model discloses a set up the PLC controller the same with the function of rim lubricating arrangement controller, be connected with the display that is used for showing the control mode and the operating condition of PLC controller during operation on this PLC controller, be connected with the oil spout pilot lamp on the rim lubricating arrangement controller, when the oil spout pilot lamp received the oil spout signal in the rim lubricating arrangement controller control mode, the oil spout instruction is luminous, otherwise the oil spout pilot lamp is luminous; the PLC and the rim lubricating device controller simultaneously receive the high level signal output by the power module and trigger the PLC and the rim lubricating device controller to simultaneously enter the same control mode; if the PLC and the wheel rim lubricating device controller simultaneously enter a straight control mode, and the straight control mode comprises oil injection time length of 6S and oil injection interval time length of 120S, turning off the oil injection indicator lamp after 6S is turned on, turning on the lamp after 120S is turned off for 6S, and repeating the steps; meanwhile, the display displays that the control mode of the PLC is a straight-way control mode, the control mode is oil injection time length 6S and oil injection interval time length 120S, the current working state is oil injection time and oil injection time length or the current working state is static oil non-injection time and continuous time length, and a maintainer judges whether the function of the rim lubricating device controller is normal according to the oil injection signal time and the oil injection indicator light emitting time and time length which are displayed by the display or not, namely when the on-off state of the oil injection indicator light and the corresponding time length are consistent with the working state of the PLC displayed on the display, the function of the rim lubricating device controller is normal, otherwise, the function of the rim lubricating device controller is abnormal and needs to be maintained or updated.
Preferably, the wheel rim lubricating device further comprises an external quick plug, and the power module is connected with the wheel rim lubricating device controller sequentially through the switch and the external quick plug.
Preferably, the switch comprises a first switch, and the control mode comprises a straight control mode; the power supply module is connected with the wheel rim lubricating device controller through the first switch and the external quick plug in sequence so as to trigger a straight-path control mode of the wheel rim lubricating device controller; the power module is connected with the PLC through the first switch so as to trigger a straight-path control mode of the PLC.
Preferably, the switch further comprises a second switch, and the control mode comprises a left curve control mode; the power supply module is connected with the wheel rim lubricating device controller through the second switch and the external quick plug in sequence so as to trigger a left bend control mode of the wheel rim lubricating device controller; and the power supply module is connected with the PLC through the second switch so as to trigger a left curve control mode of the PLC.
Preferably, the switches further comprise a third switch, and the control mode comprises a right curve control mode; the power supply module is connected with the rim lubricating device controller through the third switch and the external quick plug in sequence so as to trigger a right bend control mode of the rim lubricating device controller; and the power supply module is connected with the PLC through the third switch so as to trigger a right bend control mode of the PLC.
Preferably, the second switch and the third switch are different normally open contacts on the same single-pole double-throw switch.
Preferably, the device further comprises a time relay, wherein the time relay comprises a first normally closed contact and a second normally closed contact; one end of the first normally closed contact is connected with the second switch, and the other end of the first normally closed contact is connected with the wheel rim lubricating device controller and the PLC controller; one end of the second normally closed contact is connected with the third switch, and the other end of the second normally closed contact is connected with the wheel rim lubricating device controller and the PLC controller; and one end of a coil of the time relay is connected with the power supply module, and the other end of the coil is grounded.
Preferably, the switch further comprises an automatic reset button; the control mode comprises a manual control mode; and one end of the automatic reset button is connected with the power module, and the other end of the automatic reset button is connected with the PLC to trigger a manual control mode of the PLC.
Drawings
The present invention will now be further described with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a circuit diagram of the present invention.
In the figure:
1. a rim lubrication device controller; 2. a PLC controller; 3. and a power supply module.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
As shown in fig. 1, the utility model provides a function detection device for a wheel rim lubricating device controller, which comprises a wheel rim lubricating device controller 1, a PLC controller 2, a power module 3 and a plurality of switches;
the PLC controller 2 is preset with a control mode of the wheel rim lubricating device controller 1;
the power module 3 is respectively connected with the PLC controller 2 and the wheel rim lubricating device controller 1 to realize power supply;
one end of each switch is connected with the power supply module 3, and the other end of each switch is respectively connected with the PLC controller 1 and the wheel rim lubricating device controller 2; one of the switches is used to transmit a control mode trigger signal to the PLC controller 2 and the rim lubricator controller 1 simultaneously when closed so that the PLC controller 2 and the rim lubricator controller 1 enter the same control mode;
the PLC controller 2 is connected with a display and is used for displaying the time and duration of the oil injection signal corresponding to the control mode;
the wheel rim lubricating device controller 1 is connected with an oil injection indicator lamp HL01 and is used for emitting light according to a received oil injection signal in a control mode of the wheel rim lubricating device controller 1;
and the function detection of the rim lubricating device controller is realized by whether the oil injection signal time and the oil injection signal time displayed by the display are synchronous with the light-emitting time and the oil injection indicator light HL 01.
Specifically, the display displays the current control mode (such as a straight control mode and a curve control mode) of the PLC controller 2, the fuel injection duration and the fuel injection interval duration in the control mode, and the current operating state of the PLC controller 2 (such as the current operating state being the fuel injection time and the fuel injection duration or the current operating state being the stationary fuel non-injection time and the fuel injection duration).
Compared with the prior art, the utility model discloses a set up the PLC controller 2 the same with the function of rim lubricating arrangement controller 1, this PLC controller 2 is connected with and is used for showing the control mode and the operating condition's of PLC controller 2 during operation display, be connected with the oil spout pilot lamp HL01 that is used for exporting its oil spout signal on the rim lubricating arrangement controller 1, when oil spout pilot lamp HL01 receives the oil spout signal in the control mode of rim lubricating arrangement controller 1, the oil spout is instructed luminous, otherwise oil spout pilot lamp HL01 is luminous; the PLC controller 2 and the wheel rim lubricating device controller 1 simultaneously receive high level signals output by the power module 3, and trigger the PLC controller 2 and the wheel rim lubricating device controller 1 to simultaneously enter the same control mode; if the PLC controller 2 and the wheel rim lubricating device controller 1 simultaneously enter a straight-way control mode, the straight-way control mode is oil injection time length 6S and oil injection interval time length 120S, the oil injection indicator lamp HL01 is turned off after 6S is turned on, the lamp is turned on for 6S after 120S is turned off, and the process is repeated; meanwhile, the display displays that the control mode of the PLC controller 2 is a straight-way control mode, the oil injection time in the mode is 6S, the oil injection interval is 120S, the current working state is the oil injection time and the oil injection time or the current working state is the static oil non-injection time and the continuous time, and a maintainer judges whether the function of the rim lubricating device controller is normal or not according to the synchronization of the oil injection signal time and the lighting time and time of the oil injection indicator lamp HL01 displayed by the display, namely, when the on state of the fuel injection indicator lamp HL01 coincides with the fuel injection time and the fuel injection duration displayed on the display and when the off state of the fuel injection indicator lamp HL01 coincides with the static fuel non-injection time and the fuel injection duration displayed on the display, this indicates that the rim lubrication device controller 1 is functioning properly, otherwise the rim lubrication device controller 1 is functioning improperly and needs to be repaired or updated.
As shown in fig. 1, the rim lubrication device further comprises an external quick plug X1, and the power module 3 is connected with the rim lubrication device controller 1 sequentially through the switch and the external quick plug X1.
Preferably, the switch comprises a first switch SB02, and the control mode comprises a straight-track control mode;
the power module 3 is connected with the rim lubrication device controller 1 sequentially through the first switch SB02 and the external quick plug X1 to trigger a straight control mode of the rim lubrication device controller 1;
the power module 3 is connected to the PLC controller 2 through the first switch SB02 to trigger a direct control mode of the PLC controller 2.
Preferably, the switch further comprises a second switch SB03, and the control mode comprises a left curve control mode;
the power module 3 is connected with the rim lubrication device controller 1 sequentially through the second switch SB03 and the external quick plug X1 to trigger a left curve control mode of the rim lubrication device controller 1;
the power module 3 is connected to the PLC controller 2 through the second switch SB03 to trigger the left turn control mode of the PLC controller 2.
Preferably, the switches further comprise a third switch, and the control mode comprises a right curve control mode;
the power module 3 is connected with the wheel rim lubricating device controller 1 through the third switch and the external quick plug X1 in sequence so as to trigger the right curve control mode of the wheel rim lubricating device controller 1;
and the power supply module 3 is connected with the PLC controller 2 through the third switch so as to trigger a right curve control mode of the PLC controller 2.
Preferably, the second switch SB03 and the third switch are different normally open contacts on the same single-pole double-throw switch SA 01.
Preferably, the time relay comprises a first normally closed contact and a second normally closed contact;
one end of the first normally closed contact is connected with the second switch SB03, and the other end of the first normally closed contact is connected with the wheel rim lubricating device controller 1 and the PLC controller 2;
one end of the second normally closed contact is connected with the third switch, and the other end of the second normally closed contact is connected with the wheel rim lubricating device controller 1 and the PLC controller 2;
and one end of a coil of the time relay is connected with the power supply module 3, and the other end of the coil is grounded.
Preferably, the switch further comprises an automatic reset button SB 01; the control mode comprises a manual control mode;
one end of the automatic reset button SB01 is connected with the power module 3, and the other end is connected with the PLC controller 2 to trigger the manual control mode of the PLC controller 2.
As shown in fig. 1, one end of the power switch QF01 is connected to the positive electrode of the power module 3, and the other end is connected to the positive electrodes of the rim lubrication device controller 1 and the PLC controller 2, wherein the power switch QF01 is connected to the power module through a pin X1 of an external quick plug: 5 is connected with the positive pole of the wheel rim lubricating device. The negative electrode of the power supply module 3 is connected with the negative electrode of the rim lubricating device controller 1 and the negative electrode of the PLC controller 2;
one end of the power switch QF01 connected to the positive electrode of the rim lubrication device controller 1 is further connected to one end of a first switch SB02, one end of a second switch SB03, and one end of a reset button SB01, respectively;
the other end of the first switch SB02 is connected to the 14 pin of the PLC controller 2, and the other end of the first switch SB02 is also connected to the pin X1 of the external quick plug: 4, pin X1 of the external quick plug: 4 is connected with a 14 pin of the wheel rim lubricating device;
the other end of the second switch SB03 is connected with one end of a coil of the time relay KT01, and the other end of the coil is grounded; the other end of the second switch SB03 is further connected to one end of the single-pole double-throw switch SA01, and one ends of the first normally closed contact and the second normally closed contact are respectively connected to different contacts at the other end of the single-pole double-throw switch SA 01;
the other end of the first normally closed contact is connected with a pin 17 of the PLC controller 2, the other end of the first normally closed contact is connected with a pin 17 of the wheel rim lubricating device through a pin X1:7 of an external quick plug, the other end of the second normally closed contact is connected with a pin 18 of the PLC controller 2, and the other end of the second normally closed contact is connected with a pin X1 of the external quick plug: 8 and 18 pins of the wheel rim lubricating device;
the other end of the reset button SB01 is connected with pin 13 of the PLC controller 2;
the positive pole of the oil injection indicator lamp HL01 is connected with a quick plug X1: 9 to the Q2 pin of the rim lubricator controller 2 and the negative to ground.
When a straight-track control mode of the rim lubricating device controller 2 is detected, an external quick plug X1 is inserted into the rim lubricating device controller, a power switch QF01 and a first switch SB02 are closed, a high-level input signal is received by a 14 pin of the rim lubricating device controller 2 and a 14 pin on the PLC controller 2, the on-off state of an oil injection indicator lamp HL01 and a control signal currently output by the PLC controller 2 and displayed by a display are observed, if the on-off state of the oil injection indicator lamp HL01 is consistent with the control signal currently output by the PLC controller 2, the rim lubricating device controller 2 is normal in function, otherwise, the rim lubricating device controller is abnormal;
when a left control mode of the rim lubricating device controller 2 is detected, a power switch QF01 and a second switch SB03 are closed, a single-pole double-throw switch SA01 is connected with a first normally closed contact, a high-level input signal is received by a pin 17 of the rim lubricating device controller 2 and a pin 17 on the PLC controller 2, the on-off state of an oil injection indicator lamp HL01 and a control signal currently output by the PLC controller 2 and displayed by a display are observed, if the on-off state of the oil injection indicator lamp HL01 is consistent with the control signal currently output by the PLC controller 2, the rim lubricating device controller 2 is normal in function, otherwise, the rim lubricating device controller is abnormal;
when detecting rim lubricating arrangement controller 2's left track control mode, closed power switch QF01, second switch SB03, single-pole double-throw switch SA01 connect the normally closed contact of second, rim lubricating arrangement controller 2's 18 pins with 18 pins on the PLC controller 2 receive high level input signal, observe oil spout pilot lamp HL01 the bright and dim state with the display show the control signal of PLC controller 2 current output, if unanimous, then state rim lubricating arrangement controller 2 function normally, otherwise unusual.
Through the steps, the function of the wheel rim lubricating device controller 2 can be comprehensively monitored, and whether the wheel rim lubricating device controller can normally work or not is judged.
When the power switch QF01 is closed and the button SB01 is reset, the PLC 2 starts to operate, the display will switch to the manual mode to start counting, the display will display the fuel injection time (for example, 6S), and only once operation indicates that the manual mode is normal in function. The function is used for daily prevention of self-checking of the controller and training.
The utility model avoids the equipment damage and resource waste caused by frequent oil injection of the controller 1 of the wheel rim lubrication device to be measured by arranging the time relay KT 01; specifically, if the curve control mode is generally 6S oil injection and 3S oil injection interval duration, a time threshold value of 20S is set for the time relay KT01, the curve mode test is automatically stopped after 2 times, and then the frequent oil injection of the tested wheel rim lubricating device controller 1 is avoided.
The present invention is not limited to the above embodiment, and various modifications and variations of the present invention are intended to be included within the scope of the claims and the equivalent technology if they do not depart from the spirit and scope of the present invention.
Claims (8)
1. A function detecting apparatus of a rim lubricator controller, comprising: the wheel rim lubricating device comprises a wheel rim lubricating device controller, a PLC controller, a power supply module and a plurality of switches;
the PLC is preset with a control mode of the wheel rim lubricating device controller;
the power supply module is respectively connected with the PLC and the wheel rim lubricating device controller to realize power supply;
one end of each switch is connected with the power supply module, and the other end of each switch is respectively connected with the PLC and the rim lubricating device controller; one of the switches is used for simultaneously transmitting a trigger signal of a control mode to the PLC controller and the rim lubricating device controller when the switch is closed so that the PLC controller and the rim lubricating device controller enter the same control mode;
the PLC is connected with a display and is used for displaying the time and duration of the oil injection signal corresponding to the control mode;
the wheel rim lubricating device controller is connected with an oil injection indicator lamp and is used for emitting light according to a received oil injection signal in a control mode of the wheel rim lubricating device controller, so that whether the oil injection signal time and the oil injection signal duration displayed by the display are synchronous with the light emitting time and the oil injection indicator lamp duration is synchronous with each other, and the function detection of the wheel rim lubricating device controller is realized.
2. The rim lubrication device controller function detecting apparatus according to claim 1, further comprising an external quick plug, wherein the power module is connected to the rim lubrication device controller sequentially through the switch and the external quick plug.
3. A function detecting apparatus of a rim lubrication device controller according to claim 2, wherein the switch includes a first switch, and the control mode includes a straight control mode;
the power supply module is connected with the wheel rim lubricating device controller through the first switch and the external quick plug in sequence so as to trigger a straight-path control mode of the wheel rim lubricating device controller;
the power module is connected with the PLC through the first switch so as to trigger a straight-path control mode of the PLC.
4. A function detecting apparatus of a rim lubrication device controller according to claim 3, wherein the switch further includes a second switch, and the control mode includes a left curve control mode;
the power supply module is connected with the wheel rim lubricating device controller through the second switch and the external quick plug in sequence so as to trigger a left bend control mode of the wheel rim lubricating device controller;
and the power supply module is connected with the PLC through the second switch so as to trigger a left curve control mode of the PLC.
5. The function detecting apparatus of a rim lubrication device controller according to claim 4, wherein the switch further includes a third switch, and the control mode includes a right turn control mode;
the power supply module is connected with the rim lubricating device controller through the third switch and the external quick plug in sequence so as to trigger a right bend control mode of the rim lubricating device controller;
and the power supply module is connected with the PLC through the third switch so as to trigger a right bend control mode of the PLC.
6. A function detecting apparatus of a rim lubrication device controller according to claim 5, characterized in that the second switch and the third switch are different normally open contacts on the same single pole double throw switch.
7. A function detecting apparatus of a rim lubricating apparatus controller according to claim 5 or 6, characterized by further comprising a time relay including a first normally closed contact and a second normally closed contact;
one end of the first normally closed contact is connected with the second switch, and the other end of the first normally closed contact is connected with the wheel rim lubricating device controller and the PLC controller;
one end of the second normally closed contact is connected with the third switch, and the other end of the second normally closed contact is connected with the wheel rim lubricating device controller and the PLC controller;
and one end of a coil of the time relay is connected with the power supply module, and the other end of the coil is grounded.
8. A function detecting apparatus of a rim lubrication device controller according to claim 7, wherein the switch further includes an automatic reset button; the control mode comprises a manual control mode;
and one end of the automatic reset button is connected with the power module, and the other end of the automatic reset button is connected with the PLC to trigger a manual control mode of the PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921394915.XU CN210573347U (en) | 2019-08-26 | 2019-08-26 | Function detection equipment for rim lubricating device controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921394915.XU CN210573347U (en) | 2019-08-26 | 2019-08-26 | Function detection equipment for rim lubricating device controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210573347U true CN210573347U (en) | 2020-05-19 |
Family
ID=70640618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921394915.XU Active CN210573347U (en) | 2019-08-26 | 2019-08-26 | Function detection equipment for rim lubricating device controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210573347U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111874031A (en) * | 2020-08-10 | 2020-11-03 | 中车大同电力机车有限公司 | Locomotive wheel rim lubrication control method and system |
| CN113586929A (en) * | 2021-09-07 | 2021-11-02 | 三角轮胎股份有限公司 | Method for automatically carrying out secondary lubrication in tire dynamic balance detection |
-
2019
- 2019-08-26 CN CN201921394915.XU patent/CN210573347U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111874031A (en) * | 2020-08-10 | 2020-11-03 | 中车大同电力机车有限公司 | Locomotive wheel rim lubrication control method and system |
| CN111874031B (en) * | 2020-08-10 | 2022-01-25 | 中车大同电力机车有限公司 | Locomotive wheel rim lubrication control method and system |
| CN113586929A (en) * | 2021-09-07 | 2021-11-02 | 三角轮胎股份有限公司 | Method for automatically carrying out secondary lubrication in tire dynamic balance detection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210573347U (en) | Function detection equipment for rim lubricating device controller | |
| CN105425144A (en) | Relay fault detection circuit and fault detection method thereof | |
| CN108550270B (en) | Traffic signal lamp abnormal state processing and returning method and traffic signal lamp | |
| US20220365514A1 (en) | System and method for visual state identification of automation systems | |
| JP6804822B2 (en) | Traffic signal system | |
| US9610959B2 (en) | Monitoring system, wayside LED signaling device, and method for monitoring a wayside LED signaling device | |
| CN205722436U (en) | Tape jam detection and the signal lights reported to the police | |
| GB2380620A (en) | Automatic emergency lamp testing unit | |
| JP2019111998A (en) | Disconnection detector for light emitter | |
| CN201178514Y (en) | Alarm lamp abnormity monitoring device | |
| CN102285565A (en) | Automatic recognition method for overhaul running state of elevator | |
| WO2019029655A1 (en) | Method and device for monitoring filament state of signal lamp device, and interlocking system | |
| CN202870235U (en) | Automobile fuse detection device | |
| CN113352893B (en) | High-voltage interlocking troubleshooting system for electric automobile | |
| CN210181172U (en) | Small-size light current control relay automatic checkout device | |
| CN115009056A (en) | Charging connection device of electric vehicle | |
| CN212113485U (en) | Visual monitoring device for connecting contact of mining high-voltage explosion-proof switch | |
| CN214622944U (en) | Time delay relay testing arrangement | |
| CN202949614U (en) | Diagnostic device of steering lamp and diagnostic device of steering lamp group | |
| JP2018054398A (en) | Ground fault current detector | |
| CN104427729A (en) | Automobile instrument alarm lamp fault processing method and system | |
| CN202119851U (en) | Sensor type testing device | |
| CN110371149A (en) | The method and device of the malfunction monitoring of locomotive headlamp | |
| CN215599324U (en) | Vehicle battery loss detection device | |
| CN212373392U (en) | Train warning light switching system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |