CN111976753A - Unmanned vigilance device and implementation method of unmanned vigilance function in emergency traction mode - Google Patents
Unmanned vigilance device and implementation method of unmanned vigilance function in emergency traction mode Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
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Abstract
The invention discloses an unmanned vigilance device and a method for realizing the unmanned vigilance function in an emergency traction mode, wherein the input and output ends of a control unit are respectively connected with an unmanned vigilance effective action component, an acousto-optic alarm device and a brake execution component through hard wiring; meanwhile, the unmanned active action component can be monitored whether being continuously pressed for a long time or not, so that the driving safety is further improved.
Description
Technical Field
The invention belongs to the technical field of rail transit, and particularly relates to an unmanned vigilance device and an implementation method of an unmanned vigilance function in an emergency traction mode.
Background
The rail locomotive is provided with the unmanned alerting device, when a locomotive driver operates the locomotive, the unmanned alerting device can monitor the mobility of the driver, prevent the driver from being unconscious and the like, and brake the locomotive to stop when the situation occurs so as to ensure the driving safety.
When the locomotive is static (namely the speed is zero), the unmanned warning device does not act. During the traction phase of the locomotive, the unmanned alerting device is activated once every a period of time to alert the driver to the maneuver. When the vehicle speed is not zero, the unmanned alarming device enters a monitoring state. After the unmanned vigilant device enters the monitoring state for a period of time, the unattended device can enter the monitoring state again (the timer is cleared and counts again) by pressing the vigilant button, the mobile driver controller handle, the mobile brake handle, the sanding button or the whistling button. If the button or the handle is not pressed within a period of time after the train enters the monitoring state, the unmanned alarming device enters the audible and visual alarming state, and if the button or the handle is not pressed within a period of time, the train is automatically braked to stop the train, so that the driving safety is ensured.
In the existing rail transit vehicle, a microcomputer network control system TCMS is widely applied, a plurality of control functions and safety functions depend on the microcomputer network control system TCMS, and an unmanned vigilance system for ensuring that a driver is in an awake state during driving is also highly dependent on the microcomputer network control system TCMS. As shown in fig. 1, the network control system TCMS is connected to the network control system TCMS, and the network control system TCMS controls the sound and light alarm device or the brake execution unit according to the signals from the alarm button, the sanding button, and the whistle button, and the unmanned alarm button is attached to the handle of the driver controller, and the driver continuously presses the button on the handle to transmit the driver to the unmanned alarm device, or the network control system TCMS triggers the vehicle brake. However, when a communication node in the microcomputer network control system TCMS has a problem, that is, when the microcomputer network control system TCMS has a fault, the microcomputer network control system TCMS is cut off, and when the locomotive control is switched to the emergency traction mode, the unmanned warning device depending on the microcomputer network control system TCMS is simultaneously disabled, which is likely to cause a driving safety problem.
Disclosure of Invention
The invention aims to provide an unmanned vigilance device and a method for realizing the unmanned vigilance function in an emergency traction mode, which are used for solving the driving safety problem caused by the failure of the unmanned vigilance device due to the fault of a microcomputer network control system, and the situation that an unmanned vigilance effective action part is not pressed only by monitoring the situation that the unmanned vigilance effective action part is not pressed but also by monitoring the situation that a driver sleeps or other accidents, so that the unmanned vigilance effective action part is pressed for a long time.
One or more of the above objects are solved by the solution of the independent claims of the present invention.
The invention solves the technical problems through the following technical scheme: an unmanned alert device comprises an unmanned alert effective action component, an acousto-optic alarm device and a brake execution component; the method is characterized in that: the Control Unit is characterized by further comprising a Control Unit, wherein the input end of the Control Unit is respectively connected with an unmanned active action component and the output end of a DCU (Drive Control Unit) through hard wiring, and the output end of the Control Unit is respectively connected with an acousto-optic alarm device and a brake execution component through hard wiring; the control unit controls the sound-light alarm device and the brake execution component to act according to the closing duration of any one unmanned active action component, the non-closing duration of all the unmanned active action components and the zero-speed signal output by the DCU.
The unmanned vigilance device is additionally provided with the control unit, the input and output ends of the control unit are respectively connected with the unmanned vigilance effective action component, the acousto-optic alarm device and the brake execution component through hard wiring, when the microcomputer network control system is cut off due to failure, the unmanned vigilance function is realized through the control unit, the signal transmission is more reliable through the hard wiring, and the driving safety is greatly improved; meanwhile, the unmanned active action component can be monitored whether being continuously pressed for a long time or not, so that the driving safety is further improved.
Further, the control unit comprises a first intermediate relay, a second intermediate relay, a first time delay relay, a second time delay relay and a third time delay relay; a first end of a coil of the first intermediate relay is connected with an unmanned vigilant effective action component, and a second end of the coil of the first intermediate relay is respectively connected with a first end of the coil of the first time delay relay and a first end of a normally open contact of the first time delay relay; the second end of the normally open contact of the first time delay relay is respectively connected with the second end of the normally open contact of the second time delay relay and the first end of the normally open contact of the second intermediate relay; the second end of the normally open contact of the second intermediate relay is respectively connected with the audible and visual alarm device and the first end of the coil of the third time delay relay; the second end of the normally closed contact of the first intermediate relay is connected with the first end of the coil of the second time delay relay; the first end of the coil of the second intermediate relay is connected with the output end of the DCU; the second end of the normally closed contact of the third time delay relay is connected with the brake execution component; the first end of the normally closed contact of the first intermediate relay, the first end of the normally open contact of the second time delay relay and the first end of the normally closed contact of the third time delay relay are connected with the anode of the vehicle-mounted control power supply; and the second end of the coil of the first time delay relay, the second end of the coil of the second time delay relay, the second end of the coil of the third time delay relay and the second end of the coil of the second intermediate relay are connected with the negative electrode of the vehicle-mounted control power supply.
The hardware control circuit is simple in structure, design cost is reduced, and therefore implementation cost of the unmanned vigilance function is reduced. The third time delay relay is a normally closed contact relay, and braking is triggered by the disconnection of the normally closed contact, so that the braking safety is improved.
Further, the delay time of the first delay relay is 5s, the delay time of the second delay relay is 30s, and the delay time of the third delay relay is 10 s.
Furthermore, the Control Unit is an LCU (Logical Control Unit), an unattended function is realized by adopting the LCU, and the Control system has the characteristics of flexible Control mode, simple programming, intuitive wiring, clear maintenance and arrangement and the like.
Further, the unmanned vigilance-effective action component comprises a vigilance button, a sanding button and a whistling button.
The invention also provides a method for realizing the unmanned vigilance function by utilizing the unmanned vigilance device in an emergency traction mode, which comprises the following steps:
step 1: judging whether the real-time speed of the locomotive is greater than a critical speed, if so, entering a step 2, and otherwise, entering a step 3;
step 2: if any one unmanned active action component is closed and the closing duration is less than the first time period t1, sound and light alarm and brake are not triggered;
if any one unmanned vigilance effective action part is closed and the closing duration time is less than the first time period t1+ the third time period t3 when the first time period t1 is less than or equal to the closing duration time, triggering sound and light alarm;
if any one unmanned active action component is closed and the first time period t1+ the third time period t3 is less than or equal to the closing duration, triggering acousto-optic alarm and braking;
if all the unmanned active action components are not closed and the duration of the non-closing is less than a second time period t2, sound and light alarm and braking are not triggered;
if all the unmanned vigilant active action components are not closed, and the non-closing duration time is less than the second time period t2+ the third time period t3 and is not more than the second time period t2, triggering sound and light alarm;
if all the unmanned vigilant effective action components are not closed and the second time period t2+ the third time period t3 is not more than the non-closed duration, triggering sound and light alarm and braking;
and step 3: the acousto-optic alarm and the brake are not triggered.
According to the method, whether the unmanned active action component is continuously pressed or not pressed, effective monitoring can be achieved, processing actions (acousto-optic alarm and/or braking) are carried out according to the duration time, and the driving safety is improved.
Further, the first time period t1 is equal to the energization delay time of the first delay relay, the second time period t2 is equal to the energization delay time of the second delay relay, and the third time period t3 is equal to the energization delay time of the third delay relay;
if any one of the unattended active action components is closed and the closing duration is less than a first time period t1, the coil of the first intermediate relay and the coil of the first time delay relay are electrified, the coil of the first intermediate relay is electrified to disconnect the normally closed contact of the first intermediate relay, so that the coil of the second time delay relay is electrified, and the normally open contact of the second time delay relay is disconnected; the coil of the first time delay relay is electrified, and the electrified time is shorter than the electrified time delay of the first time delay relay, so that the normally open contact of the first time delay relay is kept disconnected, the acousto-optic alarm device and the third time delay relay are not electrified, and acousto-optic alarm and brake are not triggered;
if any one of the unattended effective action components is closed, and the closing duration time is less than the first time period t1+ the third time period t3 when the first time period t1 is less than or equal to the closing duration time, the coil of the first intermediate relay is electrified, the normally closed contact of the first intermediate relay is disconnected, the coil of the second delay relay is electrified, and the normally open contact of the second delay relay is disconnected; the coil of the first time delay relay is electrified, the electrification time is longer than or equal to the electrification time delay of the first time delay relay, the normally open contact of the first time delay relay is closed, the acousto-optic alarm device is electrified and sends out acousto-optic alarm, the coil of the third time delay relay is electrified, the electrification time is shorter than the electrification time delay of the third time delay relay, the normally closed contact of the third time delay relay is closed, and braking is not triggered;
if any one of the unattended active action components is closed, and the first time period t1+ the third time period t3 are not longer than the closing duration, the coil of the first intermediate relay and the coil of the first time delay relay are electrified, the coil of the first intermediate relay is electrified to break the normally closed contact of the first intermediate relay, so that the coil of the second time delay relay is electrified, and the normally open contact of the second time delay relay is broken; the coil of the first time delay relay is electrified, the electrified time is longer than the electrified time delay of the first time delay relay, the normally open contact of the first time delay relay is closed, the audible and visual alarm is sent, the coil of the third time delay relay is electrified, the electrified time is longer than or equal to the electrified time delay of the third time delay relay, the normally closed contact of the third time delay relay is disconnected, and the brake is triggered.
When the real-time speed of the locomotive is higher than the critical speed, a coil of a second intermediate relay is electrified, a normally open contact of the second intermediate relay is closed, whether an acousto-optic alarm device and a third delay relay are electrified or not is controlled by a first intermediate relay, a first delay relay and a second delay relay, and whether braking is triggered or not is controlled by the electrified time of the third delay relay; when the unmanned active action component is continuously pressed for a long time (namely the first time period t1 is not less than or equal to the closing duration time which is less than the first time period t1+ the third time period t 3), the acousto-optic alarm is triggered, when the unmanned active action component is continuously pressed for a long time (namely the first time period t1+ the third time period t3 is not less than the closing duration time), the acousto-optic alarm and the brake are triggered, the long-time continuous pressing of the unmanned active action component caused by the drowsiness or other accidents of a driver is prevented, the monitoring of the state of the driver is realized, and the driving safety is improved.
Further, the first time period t1 is equal to the energization delay time of the first delay relay, the second time period t2 is equal to the energization delay time of the second delay relay, and the third time period t3 is equal to the energization delay time of the third delay relay;
if all the unattended effective action components are not closed and the non-closing duration is less than a second time period t2, the coil of the first intermediate relay and the coil of the first time delay relay lose power, the coil of the first intermediate relay loses power to close the normally closed contact of the first intermediate relay, the coil of the second time delay relay gets power, the power getting time is less than the power-on delay time of the second time delay relay, and the normally open contact of the second time delay relay is disconnected; the coil of the first time delay relay loses power to keep the normally open contact of the first time delay relay disconnected, and the acousto-optic alarm device and the third time delay relay are not powered on, so that acousto-optic alarm and brake are not triggered;
if all the unattended effective action components are not closed, and the non-closing duration time is less than or equal to the second time period t2+ the third time period t3 and is not more than or equal to the second time period t2, the coil of the first intermediate relay loses power to close the normally closed contact of the first intermediate relay, the coil of the second time delay relay is powered on, the power-on time is more than or equal to the power-on delay time of the second time delay relay, the normally open contact of the second time delay relay is closed, the audible and visual alarm device is powered on and gives out audible and visual alarm, the coil of the third time delay relay is powered on, the power-on time is less than the power-on delay time of the third time delay relay, the normally closed contact of the third time delay relay is closed, and braking is not triggered; the coil of the first time delay relay loses power to keep the normally open contact of the first time delay relay disconnected;
if all the unattended effective action components are not closed, and the second time period t2 plus the third time period t3 is not more than or equal to the non-closed duration, the coil of the first intermediate relay and the coil of the first time delay relay lose power, the coil of the first intermediate relay loses power to close the normally closed contact of the first intermediate relay, the coil of the second time delay relay gets power, the power-on time is longer than the power-on delay time of the second time delay relay, the normally open contact of the second time delay relay is closed, an acousto-optic alarm is sent out, the coil of the third time delay relay gets power, the power-on time is longer than or equal to the power-on delay time of the third time delay relay, the normally closed contact of the third time delay relay is disconnected, and braking is triggered; and the coil of the first time delay relay loses power to keep the normally open contact of the first time delay relay disconnected.
When the unmanned active action component is not pressed for a long time (namely the second time period t2 is not less than or equal to the unclosed duration time is less than the second time period t2+ the third time period t 3), the acousto-optic alarm is triggered, and when the unmanned active action component is continuously pressed for a long time (namely the second time period t2+ the third time period t3 is not less than or equal to the unclosed duration time), the acousto-optic alarm and the brake are triggered, so that the situation that the driver sleeps or other accidents cause that the unmanned active action component is not pressed for a long time is prevented, the monitoring of the state of the driver is realized, and the driving safety is improved.
Further, the critical speed is 3km/h, wherein 3km/h is a zero speed signal set by considering the measurement error of the speed sensor in the engineering processing process, and if no measurement error exists, the critical speed is 0 km/h.
Further, the first time period t1 is 5s, the second time period t2 is 30s, and the third time period t3 is 10 s.
Advantageous effects
Compared with the prior art, the unmanned vigilance device and the implementation method of the unmanned vigilance function in the emergency traction mode provided by the invention have the advantages that the input and output ends of the control unit are respectively connected with the unmanned vigilance effective action component, the acousto-optic alarm device and the brake execution component through hard wiring, when the microcomputer network control system is cut off due to fault, the unmanned vigilance function is realized through the control unit, the signal transmission is more reliable through the hard wiring, the problem that the unmanned vigilance function cannot be realized when the microcomputer network control system is cut off due to fault is solved, and the driving safety is greatly improved; meanwhile, the unmanned active action component can be monitored whether being continuously pressed for a long time or not, so that the driving safety is further improved.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only one embodiment of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a block diagram of an unattended device according to the background of the invention;
fig. 2 is a block diagram showing the construction of an unattended apparatus according to embodiment 1 of the present invention;
fig. 3 is a circuit diagram of a control unit in embodiment 1 of the present invention;
fig. 4 is a flowchart of the operation of each component of the control unit in the emergency traction mode in embodiment 1 of the present invention;
fig. 5 is a block diagram showing the structure of an unattended apparatus according to embodiment 2 of the present invention.
Detailed Description
The technical solutions in the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.
Example 1
As shown in fig. 2, the unattended device provided by the invention comprises an unattended active action component K1/K2/K3, an audible and visual alarm device, a brake execution component and a control unit; the input end of the control unit is respectively connected with the output ends of an unmanned vigilant effective action component K1/K2/K3 and a DCU (digital control unit) through hard wiring, and the output end of the control unit is respectively connected with an audible and visual alarm device and a brake execution component through hard wiring; the control unit controls the sound-light alarm device and the brake execution component to act according to the closing duration of any one of the unmanned active action components K1/K2/K3, the non-closing duration of all the unmanned active action components K1/K2/K3 and the zero-speed signal output by the DCU.
As shown in fig. 3, the control unit includes a first intermediate relay a, a second intermediate relay E, a first delay relay B, a second delay relay C, and a third delay relay D; the first end of the coil of the first intermediate relay A is connected with an unmanned vigilant effective action component K1/K2/K3, and the second end of the coil of the first intermediate relay A is respectively connected with the first end of the coil of the first time delay relay B and the normally open contact K of the first time delay relay BBIs connected with the first end of the first connecting pipe; normally open contact K of the first time delay relay BBThe second ends of the first and second delay relays C are respectively connected with a normally open contact K of a second delay relay CCSecond terminal of (1), normally open contact K of second intermediate relay EEIs connected with the first end of the first connecting pipe; the second end of a normally open contact KE of the second intermediate relay E is respectively connected with the audible and visual alarm device and the first end of a coil of a third time delay relay D; normally closed contact K of the first intermediate relay AAIs connected with the first end of the coil of the second time delay relay C; the first end of the coil of the second intermediate relay E is connected with the output end of the DCU; normally closed contact K of third time delay relay DDThe second end of the brake actuating component is connected with the brake actuating component; normally closed contact K of the first intermediate relay AAThe first end of the first time delay relay C and the normally open contact K of the second time delay relay CCAnd a normally closed contact K of a third time delay relay DDThe first ends of the two ends are connected with the anode of the vehicle-mounted control power supply; and the second end of the coil of the first time delay relay B, the second end of the coil of the second time delay relay C, the second end of the coil of the third time delay relay D and the second end of the coil of the second intermediate relay E are connected with the negative electrode of the vehicle-mounted control power supply.
The hardware control circuit is simple in structure, design cost is reduced, and therefore implementation cost of the unmanned vigilance function is reduced. The third time delay relay D is a normally closed contact relay, and braking is triggered by the disconnection of the normally closed contact, so that the braking safety is improved. The electrifying delay time of the first delay relay, the second delay relay and the third delay relay is adapted to the continuous pressing time or the continuous non-pressing time of the unattended effective action component.
In this embodiment, the unattended active action component includes an alert button, a sanding button, and a whistling button.
The working principle of the unmanned vigilance device is as follows: controlling the coil of the second intermediate relay E to be electrified or deenergized according to a zero-speed signal output by the DCU, and electrifying the coil of the second intermediate relay E when the real-time speed of the locomotive is greater than the critical speed to ensure that a normally open contact K of the second intermediate relay EEClosing; when any one of the unattended active action components K1/K2/K3 is closed, the coil of the first intermediate relay A and the coil of the first time delay relay B are electrified, and the coil of the first intermediate relay A is electrified to enable the normally closed contact K of the coil of the first intermediate relay A to be normally closedAThe coil of the second time delay relay C is powered off, and the normally open contact K of the second time delay relay C is openedCOpen by the normally open contact K of the first time-delay relay BBThe acousto-optic alarm and the brake are controlled; because the first time delay relay B is an electrified time delay relay, only when the power-on time of the coil of the first time delay relay B is longer than the electrified time delay t1, the normally open contact K of the first time delay relay BBWill be closed and normally open contact KBThe closed coil of the acousto-optic alarm device and the third time delay relay D can be powered on, and an acousto-optic alarm is sent out when the acousto-optic alarm device is powered on, similarly, because the third time delay relay D is a power-on time delay relay, only when the power-on time of the coil of the third time delay relay D is greater than the power-on time delay t3, the normally open contact K of the third time delay relay DDWill be closed and will trigger the brake.
When no unmanned active component K1/K2/K3 is closed, the coil of the first intermediate relay A and the coil of the first time delay relay B are de-energized, the coil of the first time delay relay B is de-energized, and the normally open contact K of the first time delay relay B is de-energizedBOpen by normally open contact K of second time-delay relay CCThe acousto-optic alarm and the brake are controlled; the coil of the first intermediate relay A is powered off to make the coil normally closedContact KAThe coil of the second time delay relay C is electrified, and only when the electrified time of the coil of the second time delay relay C is longer than the electrified time t2, the normally open contact K of the second time delay relay CCWill be closed and normally open contact KCThe closed coil of the acousto-optic alarm device and the third time delay relay D can be powered on, and an acousto-optic alarm is sent out when the acousto-optic alarm device is powered on, similarly, because the third time delay relay D is a power-on time delay relay, only when the power-on time of the coil of the third time delay relay D is greater than the power-on time delay t3, the normally open contact K of the third time delay relay DDWill be closed and will trigger the brake.
The invention also provides a method for realizing the unmanned vigilance function by utilizing the unmanned vigilance device in an emergency traction mode, which comprises the following steps:
1. and (3) judging whether the real-time speed of the locomotive is greater than the critical speed, if so, entering the step 2, and otherwise, entering the step 3.
If the real-time speed of the locomotive is greater than the critical speed, the coil of the second intermediate relay E is electrified, so that the normally open contact K of the second intermediate relay EEAnd closing, and controlling whether to trigger sound and light alarm and/or braking by a first intermediate relay A, a first delay relay B and a second delay relay C. In the embodiment, the critical speed is 3km/h, wherein 3km/h is a zero-speed signal set in the engineering processing process by considering the measurement error of the speed sensor, and if no measurement error exists, the critical speed is 0 km/h.
2. Judging whether the unmanned vigilance effective action component K1/K2/K3 is closed or not, acquiring the closing duration or the non-closing duration, and triggering sound and light alarm and/or braking according to the closing state and the closing duration or the non-closing duration of the unmanned vigilance effective action component K1/K2/K3, as shown in figure 4.
In the present embodiment, the first time period t1 is equal to the energization delay time of the first delay relay B, the second time period t2 is equal to the energization delay time of the second delay relay C, and the third time period t3 is equal to the energization delay time of the third delay relay D. The duration of closure refers to the time that any one or more of the unattended active action components continues to close; the non-closing duration refers to the duration of time that all unattended active action components are not closed.
If any one of the unattended active action components K1/K2/K3 is closed and the closing duration is less than the first time period t1, the coil of the first intermediate relay A and the coil of the first time delay relay B are electrified, and the coil of the first intermediate relay A is electrified to enable the normally closed contact K of the first intermediate relay A to be normally closedAThe coil of the second time delay relay C is powered off, and the normally open contact K of the second time delay relay C is disconnectedCOpen by the normally open contact K of the first time-delay relay BBThe acousto-optic alarm and the brake are controlled; the coil of the first time delay relay B is electrified, and the electrified time is less than the electrified time delay of the first time delay relay B, so that the normally open contact K of the first time delay relay BBAnd the disconnection is kept, the acousto-optic alarm device and the third time delay relay D are not electrified, and acousto-optic alarm and braking are not triggered.
If any one of the unattended active action components K1/K2/K3 is closed, and the first time period t1 is not less than or equal to the closing duration time which is less than the first time period t1+ the third time period t3, the coil of the first intermediate relay A and the coil of the first time delay relay B are electrified, and the coil of the first intermediate relay A is electrified to enable the normally closed contact K of the first intermediate relay A to be normally closedAThe coil of the second time delay relay C is powered off, and the normally open contact K of the second time delay relay C is disconnectedCDisconnecting; the coil of the first time delay relay B is electrified, and the electrified time is more than or equal to the electrified time delay of the first time delay relay B, so that the normally open contact K of the first time delay relay BBWhen the relay is closed, the acousto-optic alarm device is electrified to send out acousto-optic alarm, the coil of the third time delay relay D is electrified, and the electrified time is less than the electrified time delay of the third time delay relay D, so that the normally closed contact K of the third time delay relay D is enabledDAnd closing and not triggering braking.
If any one of the unmanned active action components K1/K2/K3 is closed and the first time period t1+ the third time period t3 is less than or equal to the closing duration, the first intermediate relayThe coil of the first intermediate relay A is electrified with the coil of the first time delay relay B, and the coil of the first intermediate relay A is electrified to enable the normally closed contact K of the first intermediate relay AAThe coil of the second time delay relay C is powered off, and the normally open contact K of the second time delay relay C is disconnectedCDisconnecting; the coil of the first time delay relay B is electrified, and the electrified time is longer than the electrified time delay of the first time delay relay B, so that the normally open contact K of the first time delay relay BBClosing the relay, giving out audible and visual alarm, electrifying the coil of the third time delay relay D for a time longer than or equal to the electrifying time delay time of the third time delay relay D, and enabling the normally closed contact K of the third time delay relay DDAnd (4) disconnecting to trigger braking.
If all the unattended active action components K1/K2/K3 are not closed and the non-closing duration is less than the second time period t2, the coil of the first intermediate relay A and the coil of the first time delay relay B are de-energized, and the coil of the first intermediate relay A is de-energized to enable the normally closed contact K of the first intermediate relay A to be in normally closed contactAWhen the relay is closed, the coil of the second time delay relay C is electrified, the electrified time is less than the electrified time delay time of the second time delay relay C, and the normally open contact K of the second time delay relay CCDisconnecting; and the coil of the first time delay relay B is powered off to keep the normally open contact KB of the first time delay relay B disconnected, and the acousto-optic alarm device and the third time delay relay D are not powered on to trigger acousto-optic alarm and brake.
If all the unmanned active action components K1/K2/K3 are not closed, and the second time period t2 is not less than or equal to the non-closed duration time which is less than the second time period t2+ the third time period t3, the coil of the first intermediate relay A and the coil of the first time delay relay B are de-energized, and the coil of the first intermediate relay A is de-energized to enable the normally closed contact K of the first intermediate relay A to be normally closedAWhen the relay is closed, the coil of the second time delay relay C is electrified, the electrified time is more than or equal to the electrified time delay time of the second time delay relay C, and the normally open contact K of the second time delay relay CCWhen the relay is closed, the acousto-optic alarm device is electrified to send out acousto-optic alarm, the coil of the third time delay relay D is electrified, and the electrified time is less than the electrified time delay of the third time delay relay D, so that the normally closed contact of the third time delay relay D is enabledKDClosing without triggering brake; the coil of the first time delay relay B loses power to enable the normally open contact K of the first time delay relay BBRemain open.
If all the unmanned active action components K1/K2/K3 are not closed and the second time period t2+ the third time period t3 are not more than or equal to the non-closed duration, the coil of the first intermediate relay A and the coil of the first time delay relay B are de-energized, and the coil of the first intermediate relay A is de-energized to enable the normally closed contact K of the first intermediate relay A to be normally closedAWhen the relay is closed, the coil of the second time delay relay C is electrified, the electrified time is longer than the electrified time delay time of the second time delay relay C, and the normally open contact K of the second time delay relay CCClosing the relay, giving out audible and visual alarm, electrifying the coil of the third time delay relay D for a time longer than or equal to the electrifying time delay time of the third time delay relay D, and enabling the normally closed contact K of the third time delay relay DDDisconnecting and triggering braking; the coil of the first time delay relay B loses power to enable the normally open contact K of the first time delay relay BBRemain open.
In the present embodiment, the first period t1 (i.e., the energization delay time of the first time delay relay B) is 5s, the second period t2 (i.e., the energization delay time of the second time delay relay C) is 30s, and the third period t3 (i.e., the energization delay time of the third time delay relay D) is 10 s. When any one unmanned vigilance effective action component K1/K2/K3 is pressed for more than 5s, an audible and visual alarm is given out, the unmanned vigilance effective action component is still pressed in the subsequent 10s (as long as the unmanned vigilance effective action component is cancelled in the subsequent 10s, the brake cannot be implemented, the unmanned vigilance effective action component enters the monitoring state again), and the brake is automatically implemented; when all the unmanned active action components K1/K2/K3 are not pressed for more than 30s, an audible and visual alarm is given, and the unmanned active action components are still not pressed in the subsequent 10s (as long as any one of the unmanned active action components is pressed in the subsequent 10s, the brake is not implemented, and the monitoring state is entered again), the brake is automatically implemented.
3. No matter the active action part is closed or not closed, the sound-light alarm and the brake are not triggered.
When the real-time speed of the locomotive is less than or equal to the critical speed, the coil of the second intermediate relay E loses power, so that the normally open contact K of the second intermediate relay EEAnd when the switch is switched off, no matter how the closing state of the effective action component is vigilant by no person, the acousto-optic alarm and/or the brake cannot be triggered.
According to the method, when the fault of the microcomputer network control system is removed, the unmanned vigilance function is realized through the control unit, the control unit adopts five relays to form a pure hardware control circuit, the reliability and accuracy of control are greatly improved in a full hardware control mode, the hardware control circuit is simple in structure, the design cost is reduced, and therefore the realization cost of the unmanned vigilance function is reduced; meanwhile, whether the unmanned active component is continuously pressed or not pressed, effective monitoring can be achieved, processing actions (sound and light alarm and/or braking) are carried out according to the duration time, and driving safety is improved.
Example 2
As shown in fig. 5, the unattended device provided by the present invention includes an unattended active action component, an audible and visual alarm device, a brake execution component and an LCU; the input end of the LCU is respectively connected with the unmanned vigilant effective action component and the output end of the DCU through hard wiring, and the output end of the LCU is respectively connected with the acousto-optic alarm device and the brake execution component through hard wiring; and the LCU controls the actions of the sound-light alarm device and the brake execution component according to the closing duration of any one unmanned active action component, the non-closing duration of all the unmanned active action components and the zero-speed signal output by the DCU. When the microcomputer network control system is cut off due to faults, the LCU realizes the function of unattended warning, and the driving safety is improved.
In this embodiment, the LCU may be a programmable controller, and the control logic of the unattended alert function is realized by programming, and the apparatus has the characteristics of flexible control mode, simple programming, intuitive wiring, clear maintenance arrangement, and the like.
The above disclosure is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or modifications within the technical scope of the present invention, and shall be covered by the scope of the present invention.
Claims (10)
1. An unmanned alert device comprises an unmanned alert effective action component, an acousto-optic alarm device and a brake execution component; the method is characterized in that: the input end of the control unit is respectively connected with the unmanned vigilant effective action component and the output end of the DCU through hard wiring, and the output end of the control unit is respectively connected with the acousto-optic alarm device and the brake execution component through hard wiring; the control unit controls the sound-light alarm device and the brake execution component to act according to the closing duration of any one unmanned active action component, the non-closing duration of all the unmanned active action components and the zero-speed signal output by the DCU.
2. The unmanned vigilant device of claim 1, wherein: the control unit comprises a first intermediate relay, a second intermediate relay, a first time delay relay, a second time delay relay and a third time delay relay; a first end of a coil of the first intermediate relay is connected with an unmanned vigilant effective action component, and a second end of the coil of the first intermediate relay is respectively connected with a first end of the coil of the first time delay relay and a first end of a normally open contact of the first time delay relay; the second end of the normally open contact of the first time delay relay is respectively connected with the second end of the normally open contact of the second time delay relay and the first end of the normally open contact of the second intermediate relay; the second end of the normally open contact of the second intermediate relay is respectively connected with the audible and visual alarm device and the first end of the coil of the third time delay relay; the second end of the normally closed contact of the first intermediate relay is connected with the first end of the coil of the second time delay relay; the first end of the coil of the second intermediate relay is connected with the output end of the DCU; the second end of the normally closed contact of the third time delay relay is connected with the brake execution component; the first end of the normally closed contact of the first intermediate relay, the first end of the normally open contact of the second time delay relay and the first end of the normally closed contact of the third time delay relay are connected with the anode of the vehicle-mounted control power supply; and the second end of the coil of the first time delay relay, the second end of the coil of the second time delay relay, the second end of the coil of the third time delay relay and the second end of the coil of the second intermediate relay are connected with the negative electrode of the vehicle-mounted control power supply.
3. The unmanned vigilant device of claim 2, wherein: the delay time of the first delay relay is 5s, the delay time of the second delay relay is 30s, and the delay time of the third delay relay is 10 s.
4. The unmanned vigilant device of claim 1, wherein: the control unit is an LCU.
5. The unmanned vigilant device of any of claims 1-4, wherein: the unmanned vigilance effective action component comprises a vigilance button, a sanding button and a whistling button.
6. A method of implementing an unmanned vigilance function using the unmanned vigilance apparatus of any of claims 1-5 in an emergency traction mode, comprising the steps of:
step 1: judging whether the real-time speed of the locomotive is greater than a critical speed, if so, entering a step 2, and otherwise, entering a step 3;
step 2: if any one unmanned active action component is closed and the closing duration is less than the first time period t1, sound and light alarm and brake are not triggered;
if any one unmanned vigilance effective action part is closed and the closing duration time is less than the first time period t1+ the third time period t3 when the first time period t1 is less than or equal to the closing duration time, triggering sound and light alarm;
if any one unmanned active action component is closed and the first time period t1+ the third time period t3 is less than or equal to the closing duration, triggering acousto-optic alarm and braking;
if all the unmanned active action components are not closed and the duration of the non-closing is less than a second time period t2, sound and light alarm and braking are not triggered;
if all the unmanned vigilant active action components are not closed, and the non-closing duration time is less than the second time period t2+ the third time period t3 and is not more than the second time period t2, triggering sound and light alarm;
if all the unmanned vigilant effective action components are not closed and the second time period t2+ the third time period t3 is not more than the non-closed duration, triggering sound and light alarm and braking;
and step 3: the acousto-optic alarm and the brake are not triggered.
7. The method of implementing an unattended functionality according to claim 6, wherein: the first time period t1 is equal to the energization delay time of the first time delay relay, the second time period t2 is equal to the energization delay time of the second time delay relay, and the third time period t3 is equal to the energization delay time of the third time delay relay;
if any one of the unattended active action components is closed and the closing duration is less than a first time period t1, the coil of the first intermediate relay and the coil of the first time delay relay are electrified, the coil of the first intermediate relay is electrified to disconnect the normally closed contact of the first intermediate relay, so that the coil of the second time delay relay is electrified, and the normally open contact of the second time delay relay is disconnected; the coil of the first time delay relay is electrified, and the electrified time is shorter than the electrified time delay of the first time delay relay, so that the normally open contact of the first time delay relay is kept disconnected, the acousto-optic alarm device and the third time delay relay are not electrified, and acousto-optic alarm and brake are not triggered;
if any one of the unattended effective action components is closed, and the closing duration time is less than the first time period t1+ the third time period t3 when the first time period t1 is less than or equal to the closing duration time, the coil of the first intermediate relay is electrified, the normally closed contact of the first intermediate relay is disconnected, the coil of the second delay relay is electrified, and the normally open contact of the second delay relay is disconnected; the coil of the first time delay relay is electrified, the electrification time is longer than or equal to the electrification time delay of the first time delay relay, the normally open contact of the first time delay relay is closed, the acousto-optic alarm device is electrified and sends out acousto-optic alarm, the coil of the third time delay relay is electrified, the electrification time is shorter than the electrification time delay of the third time delay relay, the normally closed contact of the third time delay relay is closed, and braking is not triggered;
if any one of the unattended active action components is closed, and the first time period t1+ the third time period t3 are not longer than the closing duration, the coil of the first intermediate relay and the coil of the first time delay relay are electrified, the coil of the first intermediate relay is electrified to break the normally closed contact of the first intermediate relay, so that the coil of the second time delay relay is electrified, and the normally open contact of the second time delay relay is broken; the coil of the first time delay relay is electrified, the electrified time is longer than the electrified time delay of the first time delay relay, the normally open contact of the first time delay relay is closed, the audible and visual alarm is sent, the coil of the third time delay relay is electrified, the electrified time is longer than or equal to the electrified time delay of the third time delay relay, the normally closed contact of the third time delay relay is disconnected, and the brake is triggered.
8. Method of implementing an unmanned vigilant function according to claim 6 or 7, characterized in that: the first time period t1 is equal to the energization delay time of the first time delay relay, the second time period t2 is equal to the energization delay time of the second time delay relay, and the third time period t3 is equal to the energization delay time of the third time delay relay;
if all the unattended effective action components are not closed and the non-closing duration is less than a second time period t2, the coil of the first intermediate relay and the coil of the first time delay relay lose power, the coil of the first intermediate relay loses power to close the normally closed contact of the first intermediate relay, the coil of the second time delay relay gets power, the power getting time is less than the power-on delay time of the second time delay relay, and the normally open contact of the second time delay relay is disconnected; the coil of the first time delay relay loses power to keep the normally open contact of the first time delay relay disconnected, and the acousto-optic alarm device and the third time delay relay are not powered on, so that acousto-optic alarm and brake are not triggered;
if all the unattended effective action components are not closed, and the non-closing duration time is less than or equal to the second time period t2+ the third time period t3 and is not more than or equal to the second time period t2, the coil of the first intermediate relay loses power to close the normally closed contact of the first intermediate relay, the coil of the second time delay relay is powered on, the power-on time is more than or equal to the power-on delay time of the second time delay relay, the normally open contact of the second time delay relay is closed, the audible and visual alarm device is powered on and gives out audible and visual alarm, the coil of the third time delay relay is powered on, the power-on time is less than the power-on delay time of the third time delay relay, the normally closed contact of the third time delay relay is closed, and braking is not triggered; the coil of the first time delay relay loses power to keep the normally open contact of the first time delay relay disconnected;
if all the unattended effective action components are not closed, and the second time period t2 plus the third time period t3 is not more than or equal to the non-closed duration, the coil of the first intermediate relay and the coil of the first time delay relay lose power, the coil of the first intermediate relay loses power to close the normally closed contact of the first intermediate relay, the coil of the second time delay relay gets power, the power-on time is longer than the power-on delay time of the second time delay relay, the normally open contact of the second time delay relay is closed, an acousto-optic alarm is sent out, the coil of the third time delay relay gets power, the power-on time is longer than or equal to the power-on delay time of the third time delay relay, the normally closed contact of the third time delay relay is disconnected, and braking is triggered; and the coil of the first time delay relay loses power to keep the normally open contact of the first time delay relay disconnected.
9. The method of implementing an unattended functionality according to claim 6, wherein: the critical speed is 3 km/h.
10. The method of implementing an unattended functionality according to claim 6, wherein: the first time period t1 is 5s, the second time period t2 is 30s, and the third time period t3 is 10 s.
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