CN210027407U - Vehicle door state monitoring system - Google Patents
Vehicle door state monitoring system Download PDFInfo
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- CN210027407U CN210027407U CN201920718953.XU CN201920718953U CN210027407U CN 210027407 U CN210027407 U CN 210027407U CN 201920718953 U CN201920718953 U CN 201920718953U CN 210027407 U CN210027407 U CN 210027407U
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Abstract
The utility model provides a door state monitoring system, include: the system comprises at least one vehicle door state switching unit and a diagnosis unit, wherein the diagnosis unit is connected with the at least one vehicle door state switching unit, and the vehicle door state switching unit is used for converting the acquired level signal of at least one vehicle door into a digital signal and sending the acquired digital signal to the diagnosis unit; the diagnosis unit judges the state of each vehicle door according to the received digital signal. The monitoring of the opening and closing state of a single vehicle door is realized, the construction is simple, the cost is low, and the arrangement equipment is few.
Description
Technical Field
The utility model relates to an intelligent control technical field especially relates to a door state monitoring system.
Background
The rapid development of urban rail transit drives the overall process of urbanization, and most people select rail transit vehicles to become transportation tools of the urban rail transit due to the advantages of convenience, rapidness, low price, no traffic jam, punctuality, accuracy and the like. The vehicle door is an important component of a subway train, the passenger compartment door of the subway train is frequently used in the operation process, more than half of faults of the train are counted by the door according to relevant data, and a driver knows the opening and closing state and the specific fault position of the door in real time in a cab particularly and importantly.
With the development of vehicle technology, door controllers of vehicle doors are continuously updated, networking is performed among the door controllers of each vehicle, the door controllers are connected to a Train Control and Management System (TCMS), key alarm information and the opening and closing states of the vehicle doors can be displayed on a Human Machine Interface (HMI) screen of the TCMS in real time, intelligent door controllers appear, the door controllers can be connected to the TCMS in an Ethernet mode, and specific parameters in the motion process of the vehicle doors are sent to the TCMS for recording and displaying the key parameters. Fig. 1 is a schematic diagram illustrating a diagnosis principle of a vehicle door state in the prior art, as shown in fig. 1, specifically, the diagnosis principle includes: the left door in-place travel switch, the right door in-place travel switch and the locking travel switch are connected in series to the door controllers, and level signals output by all the door controllers are connected in parallel to the car door loop. The low level of the door controller indicates normal door closing, and the high level indicates abnormal door closing. The indicator light is on to represent that doors of the whole train are closed abnormally, and the indicator light is off to represent that the doors of the whole train are closed normally.
If the vehicle door has a fault that the vehicle door is not closed in the operation process, a driver can only check the fault of each door from the vehicle head, and the influence of late time and the like can be caused.
The modification work of the train door is also a necessary requirement of an operation unit, and the modification work of the train needs to be carried out from the following aspects: first, a TCMS system may be added; and secondly, the gate controllers can be reconstructed, the gate controllers between the gates of each vehicle have the networking function and the fault judgment function, and the data interaction function with the TCMS system is met.
From the above analysis, it can be seen that the modification in the above manner, whether to replace each gate controller or add a TCMS system, has the problems of large workload, difficult installation and high cost.
SUMMERY OF THE UTILITY MODEL
The utility model provides a door state monitoring system for solve among the prior art to the big, installation difficulty of the transformation work load of single door monitoring and problem with high costs.
The utility model provides a door state monitoring system, include: the system comprises at least one vehicle door state switching unit and a diagnosis unit, wherein the diagnosis unit is connected with the at least one vehicle door state switching unit, and the vehicle door state switching unit is used for converting the acquired level signal of at least one vehicle door into a digital signal and sending the acquired digital signal to the diagnosis unit; the diagnosis unit is used for judging the state of each vehicle door according to the received digital signals.
Optionally, the system further comprises:
and the auxiliary power supply unit is used for supplying power to the vehicle door.
Optionally, the system further comprises:
and the travel switch is respectively connected with the auxiliary power supply unit and the vehicle door state switching unit and is used for monitoring the opening and closing of the vehicle door.
Optionally, the system further comprises:
and the display unit is connected with the diagnosis unit and is used for displaying the state of each vehicle door.
Optionally, the vehicle door state switching unit at least includes a photoelectric isolation coupling module, and the photoelectric isolation coupling module is configured to isolate an interference signal generated by the vehicle door state switching unit.
Optionally, the vehicle door state switching unit further includes a pulse suppression module, and two ends of the pulse suppression module are respectively connected to the common ground and the output end of the auxiliary power supply unit, and are used for suppressing the signal pulse generated in the vehicle door state switching unit.
Optionally, the pulse suppression module comprises a TVS tube pulse prevention group.
Optionally, the vehicle door state switching unit and the diagnosis unit are connected by a CAN networking.
Optionally, the system further comprises:
and the alarm unit is connected with the diagnosis unit and is used for giving an alarm if the state of the vehicle door is abnormal.
Optionally, the alarm unit comprises at least a photoelectric alarm module and/or an audible alarm module.
The utility model provides a door state monitoring system through increasing door state switching unit between travel switch and diagnosis unit, converts the level signal of door into digital signal, has realized monitoring the on off state of single door, and the construction is simple, with low costs, lay equipment few.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a schematic diagram illustrating a prior art door condition diagnostic system;
fig. 2 is a schematic structural diagram of a vehicle door state monitoring system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a vehicle door state monitoring system according to another embodiment of the present invention;
fig. 4 is a schematic structural diagram of a vehicle door state switching unit according to an embodiment of the present invention.
With the foregoing drawings in mind, certain embodiments of the disclosure have been shown and described in more detail below. These drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the concepts of the disclosure to those skilled in the art by reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
First, the nouns to which the present invention relates are explained:
a travel switch: in actual production, the travel switch is arranged at a prearranged position, and when a module arranged on a moving part of the production machine impacts the travel switch, the contact of the travel switch acts to realize the switching of a circuit. Thus, a travel switch is an electrical appliance that switches the circuit according to the travel position of a moving part, functioning in a similar manner to a push button; the travel switch is widely used for various machine tools and hoisting machinery for controlling the travel and carrying out terminal limit protection. In the control circuit of the elevator car door, the speed of opening and closing the car door and the limit of automatically opening and closing the door are controlled by utilizing a travel switch.
The terms "first," "second," "third," "fourth," and the like (if any) in the description are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Fig. 2 is a schematic structural diagram of a vehicle door state monitoring system provided by an embodiment of the present invention, as shown in fig. 2, the system includes: the system comprises at least one vehicle door state switching unit 10 and a diagnosis unit 20, wherein the diagnosis unit is connected with the at least one vehicle door state switching unit, and the vehicle door state switching unit 10 is used for converting the acquired level signal of at least one vehicle door into a digital signal and sending the acquired digital signal to the diagnosis unit; the diagnosis unit 20 determines the state of each vehicle door based on the received digital signal.
Specifically, the door of train is according to the function, and the door can be divided into passenger room side door, cab passway door and emergency evacuation door four kinds, in the embodiment of the utility model provides a to the passenger room side door, a door state monitoring system to the passenger room side door is provided, the system includes at least one door state switching unit 10 and diagnostic unit 20, the level signal of every door is gathered to door state switching unit 10, level signal is switching signal, then will level signal converts digital signal to give diagnostic unit 20 with the digital signal who obtains, diagnostic unit 20 is receiving behind the digital signal, judges the state of every door according to digital signal's high-low level, and the state of door is normally closed or is opened promptly.
Specifically, the number of the door state switching units 10 included in the system may be one, and may be multiple, and the diagnosis unit 20 may be connected to at least one door state switching unit 10, wherein the number of the door state switching units 10 and the number of the diagnosis units 20 may be set according to the number of doors in a train, which is not specifically limited in the embodiment of the present invention.
In the embodiment of the present invention, exemplarily, each diagnosis unit is arranged at the head and the tail of the train, each train has 8 doors, 1 train provides 6 trains, and each train is provided with a vehicle door state switching unit, wherein, the two diagnosis units can work simultaneously or alternatively, or another diagnosis unit can be used as a reserve on the premise that one diagnosis unit cannot work.
For example, if a train has 8 doors, each vehicle is provided with one door status switching unit 10, and 6 door status switching units 10 are connected to 2 diagnostic hosts 20, each door status switching unit 10 collects level signals of 8 doors, for example: the 8 level signals are respectively: 0V, 100V, 0V, 110V, 137V, 77V, 0V, the door state switching unit 10 converts the 8 level signals into 8 digital signals, i.e., 01001110, and transmits the obtained digital signals to the diagnosis unit 20, wherein the door state of each door corresponds to one digital signal; after the diagnostic unit 20 receives the digital signals, the state of each door is determined according to the high and low levels of the obtained digital signals of the doors, for example, 0 indicates normal closing and 1 indicates opening.
Optionally, a diagnosis host can be arranged at the head and the tail of the train, the diagnosis host is a diagnosis unit which is described below, when one diagnosis host breaks down, the other diagnosis host can continue to work, the normal function of the vehicle door state monitoring system is ensured, and the running safety of the vehicle is improved through the redundant arrangement of the diagnosis hosts. The vehicle door state switching unit is additionally arranged between the travel switch and the diagnosis unit, so that level signals of the vehicle door are converted into digital signals, the monitoring of the opening and closing state of a single vehicle door is realized, the construction is simple, the cost is low, and the number of distributed equipment is small.
Optionally, the system further comprises:
and the auxiliary power supply unit is used for supplying power to the vehicle door.
In particular, the auxiliary power supply unit is an indispensable part for train operation, maintaining the realization of many important functions of the train. The auxiliary power supply unit comprises an auxiliary power supply module, a power distribution module and auxiliary electric equipment. The auxiliary power supply module consists of power supply equipment and power conversion equipment; the power distribution module consists of a distribution box and a connecting cable; the auxiliary electric equipment comprises an HVAC (heating, ventilating and air conditioning) subsystem, a traction system cooling fan, a braking air compressor, a battery charger, a vehicle control device, illumination and the like. The structure types of the auxiliary power supply unit are mainly divided into the following 3 types: the power supply system comprises a centralized power supply unit, a distributed grid-connected power supply unit and a centralized arrangement and grid-connected power supply unit combining the centralized power supply unit and the distributed grid-connected power supply unit.
It should be noted that, in the embodiment of the present invention, different power supply modes can be adopted according to different requirements, and specifically, the embodiment of the present invention is not limited specifically.
Optionally, the system further comprises:
and the travel switch is respectively connected with the auxiliary power supply unit and the vehicle door state switching unit and is used for monitoring the opening and closing of the vehicle door.
Specifically, in the embodiment of the utility model provides an in, the door state monitoring system of a train still includes travel switch, all installs travel switch on every door, includes at least three, and wherein 2 are the travel switch who confirms the door plant position, are used for confirming the door plant position of left door and right door respectively, and 1 is the locking travel switch for the travel switch who confirms the door plant position is locked. Specifically, three of the travel switches are connected in series, and one end of the travel switch that determines the position of the door panel is connected to the auxiliary power supply unit through the door power supply terminal row, and the other end of the locking travel switch is connected to the door state switching unit.
In an electrical control system, a travel switch is composed of an operating head, a contact system and a housing. The device has the functions of realizing sequential control, positioning control and position state detection, and is used for controlling the stroke and limiting protection of mechanical equipment.
The travel switch can be installed on relatively static objects (such as a fixed frame, a door frame and the like, which are called static objects for short) or moving objects (such as a travelling crane, a door and the like, which are called animals for short). When the animal approaches a stationary object, the linkage of the switch drives the contacts of the switch causing the closed contacts to open or the open contacts to close. The action of the circuit and the mechanism is controlled by the change of the on-off state of the switch contact.
The travel switch is characterized in that the travel switch is provided with a relatively firm shell, and a buffer distance which is stretched by a spring is arranged when the travel switch is contacted with a moving object, so that the internal micro switch can act immediately after the moving object is contacted.
Specifically, the travel switch is also called a position switch or a limit unit switch, and is used for converting mechanical displacement into an electric signal to change the running state of the motor, namely, the motor is automatically stopped, reversed, shifted or looped according to a certain travel, so that mechanical movement is controlled or safety protection is realized.
Optionally, the system further comprises:
and the display unit is connected with the diagnosis unit and is used for displaying the state of each vehicle door.
On the basis of the above embodiment, the system not only includes the vehicle door state switching unit, the diagnosis unit, but also includes a display unit, and the display unit is connected with the diagnosis unit, and displays the diagnosis result of the diagnosis unit, that is, displays the corresponding open or closed state of which vehicle door corresponds to.
Specifically, the vehicle door state conversion unit converts the level signals of the vehicle doors into digital signals and sends the digital signals to the diagnosis unit, and the diagnosis unit judges according to the received digital signals and displays the judged results on the display unit, so that an operator can know specific conditions conveniently.
As another example, if a train has 48 doors, each vehicle is provided with one door status switching unit 10, and 6 door status switching units 10 are connected to 2 diagnostic hosts 20, each door status switching unit 10 collects level signals of 8 doors, for example: the 8 level signals are respectively: 0V, 100V, 0V, 110V, 137V, 77V, 0V, the door state switching unit 10 converts the 8 level signals into 8 digital signals, i.e., 01001110, and transmits the obtained digital signals to the diagnosis unit 20, wherein the door state of each door corresponds to one digital signal; after the diagnosis unit 20 receives the digital signal, the state of each vehicle door is determined according to the high and low levels of the obtained digital signal of the vehicle door, for example, 0 represents normal closing, 1 represents opening, and after the diagnosis unit determines the opening and closing state of each door, the determined result is displayed on a display unit, wherein the diagnosis unit is a diagnosis host and the display unit can be a display screen.
Optionally, the diagnosing unit determines the state of each vehicle door according to the received digital signal, specifically:
if the digital signal is 0, judging that the vehicle door state corresponding to the digital signal is closed;
and if the digital signal is 1, judging that the vehicle door state corresponding to the digital signal is open.
The embodiment of the utility model provides a door state monitoring system through increasing door state switching unit between travel switch and diagnosis unit, converts the level signal of door into digital signal, has realized monitoring the on off state of single door, and the construction is simple, with low costs, lay equipment few.
Optionally, the vehicle door state switching unit at least includes a photoelectric isolation coupling module, and the photoelectric isolation coupling module is configured to isolate an interference signal generated by the vehicle door state switching unit.
On the basis of the above-mentioned embodiment, door state switching unit mainly is in order to convert level signal to digital signal, that is to convert analog signal to digital signal, can adopt analog-to-digital converter, for example AD650, AD7703 etc. also can adopt optoelectronic isolation coupling module, preferred, the embodiment of the utility model provides an adopt optoelectronic isolation coupling module, wherein, optoelectronic isolator (OC) also called optoelectronic coupler, optical coupler for short, optical coupler uses light as the medium transmission signal of telecommunication, has good isolation to input, output signal of telecommunication.
The vehicle door state switching unit includes the above two implementations, but is not limited to only the above implementations, and can be selected according to actual needs. Wherein, the model of the optoelectronic isolation coupler can also be set according to the actual requirement, which is not limited in the embodiment of the present invention.
The car door state switching box, namely the car door state switching unit, adopts the photoelectric isolation interface to access the DC110V level signal provided by each car door, and the photoelectric isolation coupling is a simple and efficient isolation technology, so that the transmission path of ground interference is damaged, and the path of the interference signal entering a subsequent circuit is cut off.
Optionally, the vehicle door state switching unit further includes a pulse suppression module, and two ends of the pulse suppression module are respectively connected to the common ground and the output end of the auxiliary power supply unit, and are used for suppressing the signal pulse generated in the vehicle door state switching unit.
On the basis of each above-mentioned embodiment, door state switching box has still increased the pulse suppression module on the basis of adopting the optoelectronic isolation to insert door switch state signal, the both ends of pulse suppression module respectively with public ground with auxiliary power supply unit's output links to each other, be used for restraining produced signal pulse in the door state switching unit, it is concrete as shown in fig. 4, for the utility model discloses a door state switching unit's that embodiment provided structure schematic diagram.
Optionally, the pulse suppression module comprises a TVS tube pulse prevention group.
Specifically, a silicon transient absorption diode (TRANSIENT VOLTAGE suppresor, TVS) silicon transient absorption diode is a clamped type disturbance absorption device; its application is in parallel with the protected equipment.
Silicon transient voltage absorbing diodes have extremely fast response times (sub-nanosecond range) and relatively high surge absorption capability, as well as extremely high voltage ratings. Can be used for protecting equipment or circuits from static electricity, transient voltage generated when inductive loads are switched, and overvoltage generated by inductive lightning.
TVS transistors have two types, one-directional (single diode) and two-directional (two back-to-back connected diodes), and their main parameters are breakdown voltage, leakage current and capacitance. When in use, the breakdown voltage of the TVS tube is about 10% higher than the working voltage of the protected circuit, so that the TVS leakage current is prevented from influencing the normal work of the circuit because the working voltage of the circuit is close to the TVS breakdown voltage; and the breakdown voltage of the TVS tube is prevented from falling into the range of the normal working voltage of the line due to the change of the environmental temperature.
The TVS tube has various packaging forms, such as an axial lead product can be used on a power supply feeder; both in-line and surface mount are suitable for protection of logic circuits, I/O buses and data buses on printed boards. Under the action of the surge voltage, the voltage between the two poles of the TVS is increased from the rated reverse turn-off voltage VWM to the breakdown voltage VBR, and is broken down. With the occurrence of a breakdown current, the current flowing through the TVS will reach the peak pulse current IPP while the voltage across it is clamped below a predetermined maximum clamping voltage VC. Then, as the pulse current exponentially decays, the voltage between the two electrodes of the TVS also continuously decreases, and finally returns to the initial state, which is the process of suppressing the surge pulse power which may occur in the TVS and protecting the electronic components.
When the two poles of the TVS are impacted by reverse high energy, the TVS can change the impedance between the two poles from high to low at the speed of 10-12s, absorb the surge power of thousands of watts and clamp the potential between the two poles at a preset value, thereby effectively protecting components in electronic equipment from being damaged by surge pulses.
The TVS has the advantages of fast response time, large transient power, low leakage current, small breakdown voltage deviation, easy control of clamping voltage, small size and the like.
Optionally, the optoelectronic isolation coupling module of the vehicle door state switching unit is subjected to an isolation voltage of at most 5 kV.
Specifically, the maximum clamping Voltage (VC) of the selected TVS should be lower than the maximum withstand voltage allowed by the protection circuit. Bidirectional TVS is used in alternating current or from positive and negative bidirectional pulse applications. TVS is also sometimes used to reduce capacitance. A unidirectional TVS is sufficient if the circuit has only a forward level signal. The TVS operates as follows: when the surge is positive, the TVS is in a reverse avalanche breakdown state; in reverse surge, the TVS conducts like a forward biased diode and absorbs surge energy. In a low capacitance circuit, a bidirectional TVS should be selected to protect low capacitance devices in the circuit from reverse surge.
Optionally, the vehicle door state switching unit and the diagnosis unit are connected by a CAN networking.
On the basis of the above embodiment, fig. 3 is a schematic structural diagram of a vehicle door state monitoring system provided by another embodiment of the present invention, as shown in fig. 3, specifically, as shown in the train in fig. 3, each door includes two door panels, each door panel is provided with a travel switch, and in addition, the vehicle door state monitoring system further includes a locking travel switch, that is, a left door in-place travel switch, a right door in-place travel switch and a locking travel switch.
The method comprises the steps that a vehicle door state switching unit, namely a vehicle door state switching box, is arranged on each train, an auxiliary power supply unit provides level signals for the vehicle doors, the level signals are connected to the vehicle door state switching box through a left door in-place travel switch, a right door in-place travel switch and a locking travel switch, the vehicle door state switching box is connected with a diagnosis unit, the vehicle door state switching box collects the level signals of the vehicle doors and converts the level signals into digital signals, wherein when the vehicle doors are in a level signal state, a low level (DC0V) indicates that the vehicle doors are closed, and a high level (DC 77-137V) indicates that the vehicle doors are opened. The opening and closing state of the vehicle door is read through the vehicle door state switching box, the vehicle door state switching box is connected to the CAN bus to be connected to the diagnosis host, and the digital signal is a CAN signal.
It should be noted that the number of the car door state transfer boxes connected to the same diagnosis unit is not specifically limited in the embodiment of the present invention, and can be set by the user as required.
Optionally, the system further comprises:
and the alarm unit is connected with the diagnosis unit and is used for giving an alarm if the state of the vehicle door is abnormal.
On the basis of the above embodiments, the system not only comprises a vehicle door state switching unit, a diagnosis unit, a display unit, a travel switch and an auxiliary power supply unit, but also comprises an alarm unit, wherein the alarm unit is connected with the diagnosis unit, and alarms when the vehicle door state is abnormal, for example, all the vehicle doors of one vehicle are closed, and one of the vehicle doors is not closed; or all the vehicle doors are opened, and one of the vehicle doors is not opened, an alarm is given.
Optionally, the alarm unit comprises at least a photoelectric alarm module and/or an audible alarm module.
Specifically, when a certain door state is abnormal, the alarm unit gives an alarm, and at this time, the alarm may be given by using a photoelectric alarm module, for example, lamps with different colors are used for displaying, or an audible alarm module, for example, a buzzer is installed to give a sound for giving an alarm, or both of them may be given at the same time.
The utility model provides a door state monitoring system through increasing door state switching unit between travel switch and diagnosis unit, converts the level signal of door into digital signal, has realized monitoring the on off state of single door, and the construction is simple, with low costs, lay equipment few.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. The invention is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (10)
1. A vehicle door condition monitoring system, comprising: the system comprises at least one vehicle door state switching unit and a diagnosis unit, wherein the diagnosis unit is connected with the at least one vehicle door state switching unit, and the vehicle door state switching unit is used for converting the acquired level signal of at least one vehicle door into a digital signal and sending the acquired digital signal to the diagnosis unit; the diagnosis unit is used for judging the state of each vehicle door according to the received digital signals.
2. The system of claim 1, further comprising:
and the auxiliary power supply unit is used for supplying power to the vehicle door.
3. The system of claim 2, further comprising:
and the travel switch is respectively connected with the auxiliary power supply unit and the vehicle door state switching unit and is used for monitoring the opening and closing of the vehicle door.
4. The system of claim 1, further comprising:
and the display unit is connected with the diagnosis unit and is used for displaying the state of each vehicle door.
5. The system of claim 1, wherein the door state transition unit comprises at least an optoelectronic isolating coupling module for isolating an interference signal generated to the door state transition unit.
6. The system of claim 2, wherein the door state switching unit further comprises a pulse suppression module, both ends of the pulse suppression module are respectively connected to a common ground and an output terminal of the auxiliary power supply unit, for suppressing the signal pulse generated in the door state switching unit.
7. The system of claim 6, wherein the pulse suppression module comprises a TVS tube anti-pulse burst.
8. The system of claim 1, wherein the door state switching unit and the diagnostic unit are connected using a CAN networking.
9. The system of claim 1, further comprising:
and the alarm unit is connected with the diagnosis unit and is used for giving an alarm if the state of the vehicle door is abnormal.
10. The system according to claim 9, characterized in that said alarm unit comprises at least an optical alarm module and/or an acoustic alarm module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920718953.XU CN210027407U (en) | 2019-05-20 | 2019-05-20 | Vehicle door state monitoring system |
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| CN201920718953.XU CN210027407U (en) | 2019-05-20 | 2019-05-20 | Vehicle door state monitoring system |
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| CN210027407U true CN210027407U (en) | 2020-02-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184943A (en) * | 2021-10-29 | 2022-03-15 | 南京长亚轨道交通科技有限公司 | Auxiliary debugging device for electric control sliding plug door switch |
| CN114701528A (en) * | 2022-04-11 | 2022-07-05 | 中车株洲电力机车有限公司 | Rail transit vehicle and door state detection circuit and detection method thereof |
-
2019
- 2019-05-20 CN CN201920718953.XU patent/CN210027407U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184943A (en) * | 2021-10-29 | 2022-03-15 | 南京长亚轨道交通科技有限公司 | Auxiliary debugging device for electric control sliding plug door switch |
| CN114184943B (en) * | 2021-10-29 | 2023-07-18 | 南京长亚轨道交通科技有限公司 | Auxiliary debugging device for electric control sliding plug door switch |
| CN114701528A (en) * | 2022-04-11 | 2022-07-05 | 中车株洲电力机车有限公司 | Rail transit vehicle and door state detection circuit and detection method thereof |
| CN114701528B (en) * | 2022-04-11 | 2023-05-02 | 中车株洲电力机车有限公司 | Rail transit vehicle and door state detection circuit and detection method thereof |
| WO2023197560A1 (en) * | 2022-04-11 | 2023-10-19 | 中车株洲电力机车有限公司 | Rail transit vehicle and vehicle door state detection circuit and detection method therefor |
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