CN210063007U - Locomotive signal abnormity alarm device - Google Patents
Locomotive signal abnormity alarm device Download PDFInfo
- Publication number
- CN210063007U CN210063007U CN201920884921.7U CN201920884921U CN210063007U CN 210063007 U CN210063007 U CN 210063007U CN 201920884921 U CN201920884921 U CN 201920884921U CN 210063007 U CN210063007 U CN 210063007U
- Authority
- CN
- China
- Prior art keywords
- signal
- output end
- mainboard
- output
- voltage
- 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
- 230000003137 locomotive effect Effects 0.000 title claims abstract description 17
- 230000009466 transformation Effects 0.000 claims abstract description 82
- 230000000087 stabilizing effect Effects 0.000 claims description 49
- 230000005856 abnormality Effects 0.000 claims description 22
- 230000001131 transforming effect Effects 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 7
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 102200069896 rs104893961 Human genes 0.000 description 2
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Landscapes
- Emergency Alarm Devices (AREA)
Abstract
The utility model provides a locomotive signal abnormity alarm device, include: the first input end of the voltage transformation module is connected with a dynamic power output switch of a mainboard of the locomotive signal vehicle-mounted system, and the second input end of the voltage transformation module is connected with a dynamic power output switch of a hot standby board of the locomotive signal vehicle-mounted system; the first output end of the voltage transformation module outputs a power supply signal, and the second output end of the voltage transformation module outputs a mainboard control signal; the input end of the comparison module is connected with the output end of the voltage transformation module, and when the mainboard control signal is smaller than the power supply signal, the first output end of the comparison module outputs a mainboard closing signal; and the control end of the mainboard indicator light is connected with the first output end of the comparison module, and the mainboard indicator light is turned off after receiving a mainboard turn-off signal so as to indicate that the mainboard works abnormally. The scheme can prompt whether the mainboard works normally or not.
Description
Technical Field
The utility model relates to a locomotive field, concretely relates to locomotive signal abnormity alarm device.
Background
In order to ensure the driving safety of the locomotive and the reliability of equipment in the locomotive, a host of the locomotive signal vehicle-mounted system adopts a dual-computer hot standby redundant structure, namely two sets of host boards with the same function are arranged in the host. When the locomotive signal vehicle-mounted system works, one set of main boards is a working board, the other set of main boards is a hot standby board, and when the working board fails, the hot standby board is automatically switched to the working board. When any mainboard of the cab signal vehicle-mounted system has a fault, the equipment is in a single set working state, and a large potential safety hazard is caused to driving at the moment. However, no alarm device is available in the prior art for reminding the driver and passengers of the use condition of the mainboard.
Disclosure of Invention
The utility model discloses it has not been used for reminding the service behavior's of driver and crew's mainboard problem to aim at solving the locomotive among the prior art.
In order to solve the above problem, the utility model provides a locomotive signal abnormity alarm device, include:
the voltage transformation module is used for converting a signal input into a first input end of the voltage transformation module into a power supply signal and a mainboard control signal or converting a signal input into a second input end of the voltage transformation module into the power supply signal; the first input end of the voltage transformation module is connected with a dynamic power output switch of a mainboard of the cab signal vehicle-mounted system, and the second input end of the voltage transformation module is connected with a dynamic power output switch of a hot standby board of the cab signal vehicle-mounted system; the first output end of the voltage transformation module outputs the power supply signal, and the second output end of the voltage transformation module outputs the mainboard control signal;
the first input end of the comparison module is connected with the first output end of the voltage transformation module, and the second input end of the comparison module is connected with the second output end of the voltage transformation module; the comparison module is used for comparing the magnitude of the mainboard control signal with the magnitude of the power supply signal, and when the mainboard control signal is smaller than the power supply signal, a first output end of the comparison module outputs a mainboard closing signal;
and the control end of the mainboard indicator lamp is connected with the first output end of the comparison module, and the mainboard indicator lamp is turned off after receiving the mainboard turn-off signal so as to indicate that the mainboard works abnormally.
Optionally, the cab signal abnormality warning device further includes a hot standby board indicator light, wherein:
the transformation module is also used for converting a signal input to the second input end of the transformation module into a hot spare board control signal, and the third output end of the transformation module outputs the hot spare board control signal;
the third input end of the comparison module is connected with the third output end of the voltage transformation module, and when the hot standby board control signal is equal to the power supply signal, the second output end of the comparison module outputs a hot standby board starting signal;
the control end of the hot standby board indicator light is connected with the second output end of the comparison module, and the hot standby board indicator light is turned on after receiving the hot standby board turning-on signal so as to indicate that the hot standby board works normally.
Optionally, in the cab signal abnormality warning device described above, the voltage transformation module includes:
the first input end of the transformation part is used as the first input end of the transformation module, and the second input end of the transformation part is used as the second input end of the transformation module; the voltage transformation part is used for converting a signal input into a first input end of the voltage transformation part into a basic signal and the mainboard control signal or converting a signal input into a second input end of the voltage transformation part into the basic signal and the hot standby board control signal, a first output end of the voltage transformation part outputs the basic signal, a second output end of the voltage transformation part serves as a second output end of the voltage transformation module to output the mainboard control signal, and a third output end of the voltage transformation part serves as a third output end of the voltage transformation module to output the hot standby board control signal;
and when the basic signal input to the first input end of the voltage stabilizing part is equal to the basic signal input to the second input end of the voltage stabilizing part, the first output end of the voltage stabilizing part serves as the first output end of the voltage transformation module to output the power supply signal.
Optionally, the cab signal abnormality warning device further includes a first electric control switch and a buzzer, wherein:
the control end of the first electric control switch is connected with the first output end of the comparison module, and the first electric control switch is closed after receiving the mainboard closing signal;
the power supply end of the buzzer is connected with the first output end of the voltage stabilizing part through the first electric control switch, and when the first electric control switch is closed, the power supply end of the buzzer is connected with the first output end of the voltage stabilizing part and sends out a buzzing sound.
Optionally, the cab signal abnormality warning device further includes a second electronic control switch and a reset button, wherein:
the second electronic control switch is connected between the first electronic control switch and the first output end of the voltage stabilizing part in series, the first control end of the second electronic control switch is connected with the reset button, when the reset button is operated, the second electronic control switch is switched off, the power supply end of the buzzer is switched off from the first output end of the voltage stabilizing part, and the buzzer stops working.
Optionally, in the cab signal abnormality warning device described above:
when the mainboard control signal is equal to the power supply signal, the first output end of the comparison module outputs a mainboard starting signal;
and a second control end of the second electric control switch is connected with a first output end of the comparison module, the second electric control switch is closed after receiving the mainboard starting signal, and the first electric control switch is connected with a first output end of the voltage stabilizing part.
Optionally, in the cab signal abnormality warning device described above, the following:
a third input terminal of the voltage stabilizing part is connected with the first output terminal of the voltage stabilizing part, and a second output terminal of the voltage stabilizing part outputs a basic power signal when the basic signal is equal to the power signal;
and the power supply end of the second electric control switch and the power supply end of the first electric control switch are both connected with the second output end of the voltage stabilizing part.
Locomotive signal abnormity alarm device, wherein the power conversion of vary voltage module with the dynamic power output switch output of mainboard is power signal and mainboard control signal, or the power conversion of the dynamic power output switch output of board is equipped with the heat is power signal, and comparison module comparison power signal and mainboard control signal, when mainboard control signal is less than power signal, explain mainboard work unusual, can't export mainboard control signal, comparison module just controls mainboard pilot lamp and goes out this moment, driver and crew just can know the behavior of mainboard through observing mainboard pilot lamp, so can remind driver and crew in time to maintain, avoid the potential safety hazard.
Drawings
Fig. 1 is a schematic structural diagram of a cab signal abnormality warning device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a cab signal abnormality warning device according to another embodiment of the present invention;
fig. 3 is a schematic diagram of a voltage transformation portion of a cab signal abnormality warning device according to another embodiment of the present invention;
FIG. 4 is a schematic circuit diagram of a voltage stabilizing part of a cab signal abnormality warning device according to another embodiment of the present invention;
fig. 5 is a schematic circuit diagram of a comparison module of a cab signal abnormality warning device according to another embodiment of the present invention;
fig. 6 is a schematic circuit diagram of a first electronic control switch and a second electronic control switch of a cab signal abnormality warning device according to yet another embodiment of the present invention;
fig. 7 is a schematic circuit diagram of a third electric control switch and a fourth electric control switch of a cab signal abnormality warning device according to still another embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be further explained with reference to the drawings. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present embodiment provides a locomotive signal abnormality warning device, as shown in fig. 1, including a voltage transformation module 1, a comparison module 2 and a motherboard indicator light 3. The first input end of the transformation module 1 is connected with a dynamic power output switch of a motherboard of a cab signal vehicle-mounted system, and the second input end of the transformation module 1 is connected with a dynamic power output switch of a hot standby board of the cab signal vehicle-mounted system. The first output end of the transformation module 1 outputs the power supply signal, and the second output end of the transformation module 1 outputs the mainboard control signal. The first input end of the comparison module 2 is connected with the first output end of the voltage transformation module 1, the second input end of the comparison module 2 is connected with the second output end of the voltage transformation module 1, the comparison module 2 is used for comparing the sizes of the mainboard control signal and the power supply signal, and when the mainboard control signal is smaller than the power supply signal, the first output end of the comparison module 2 outputs a mainboard closing signal. The control end of the mainboard indicating lamp 3 is connected with the first output end of the comparison module 2, and the mainboard indicating lamp 3 is turned off after receiving the mainboard turn-off signal so as to indicate that the mainboard works abnormally.
Generally, when the motherboard works normally, the controller of the motherboard continuously outputs a square wave with a fixed frequency to the dynamic control circuit on the motherboard. When square waves are input into the dynamic control circuit, the dynamic output power switch is closed, the dynamic control output power is effective, the mainboard works normally, and a decoding result can be output; when the dynamic control circuit does not input square waves, the dynamic output power switch is switched off, the dynamic control output power is invalid, the abnormal working of the mainboard is indicated, and the decoding result cannot be output. Therefore, whether the dynamic output power switch outputs the effective power is a mark for representing whether the mainboard works or not. When the mainboard normally works, the dynamic output power switch of the mainboard outputs power, and the voltage transformation module 1 converts the power into a power signal and a host control signal; when the mainboard works abnormally, the dynamic output power switch of the mainboard is switched off, the dynamic output power switch of the hot standby board is switched on, and the voltage transformation module 1 converts the power output by the dynamic output power switch of the hot standby board into a power signal.
In the locomotive signal abnormality alarm device of this embodiment, the voltage transformation module 1 converts the power output by the dynamic power output switch of the motherboard into a power signal and a motherboard control signal, or converts the power output by the dynamic power output switch of the hot standby board into a power signal, and the power signal can be effectively output regardless of whether the motherboard works normally or the hot standby board works normally. And the comparison module 2 compares the power signal with the motherboard control signal, when the motherboard control signal is smaller than the power signal, the motherboard is abnormal in operation, the motherboard control signal cannot be output, at the moment, the comparison module 2 controls the motherboard indicator lamp 3 to be turned off, and the driver and the passengers can know the working condition of the motherboard by observing the motherboard indicator lamp 3, so that the driver and the passengers can be reminded to maintain in time, and potential safety hazards are avoided.
In some specific embodiments, as shown in fig. 2, the above solution further includes a hot standby board indicator 4, wherein the transformer module 1 is further configured to convert a signal input to the second input terminal thereof into a hot standby board control signal, and the third output terminal of the transformer module 1 outputs the hot standby board control signal. The third input end of the comparison module 2 is connected with the third output end of the voltage transformation module 1, and when the hot standby board control signal is equal to the power signal, the second output end of the comparison module 2 outputs a hot standby board starting signal. The control end of the hot standby board indicator light 4 is connected with the second output end of the comparison module 2, and the hot standby board indicator light 4 is turned on after receiving the hot standby board turning-on signal so as to indicate that the hot standby board works normally. In the above scheme, when the mainboard stops working and the hot standby board starts working, the mainboard control signal is less than the power signal, and the hot standby board control signal is greater than the power signal, the mainboard indicator lamp 3 is turned off at this moment, and the hot standby board indicator lamp 4 is turned on, so that the hot standby board indicator lamp 4 can be used for indicating whether the hot standby board normally works, and the driving safety is ensured.
In the above solution, the transforming module 1 includes a transforming part and a voltage stabilizing part, a first input end of the transforming part is used as a first input end of the transforming module 1, and a second input end of the transforming part is used as a second input end of the transforming module; the voltage transformation part is used for converting a signal input into a first input end of the voltage transformation part into a basic signal and a mainboard control signal or converting a signal input into a second input end of the voltage transformation part into the basic signal and a hot standby board control signal, a first output end of the voltage transformation part outputs the basic signal, a second output end of the voltage transformation part serves as a second output end of the voltage transformation module 1 to output the mainboard control signal, and a third output end of the voltage transformation part serves as a third output end of the voltage transformation module 1 to output the hot standby board control signal. The first input end and the second input end of the voltage stabilizing part are both connected with the first output end of the voltage transforming part, and when the basic signal input to the first input end of the voltage stabilizing part is equal to the basic signal input to the second input end of the voltage stabilizing part, the first output end of the voltage stabilizing part serves as the output end of the voltage transforming module 1 to output the power supply signal. The power supply signal serves as an input signal of the comparison module 2 on one hand, and also provides power for the comparison module 2 on the other hand.
Specifically, the transformation portion is shown in fig. 3, the P1 is a connection terminal, the P1 connection terminal includes a terminal No. 1, a terminal No. 2, a terminal No. 3 and a terminal No. 4, wherein the terminal No. 4 is connected with a dynamic power output switch of a motherboard of the cab signal on-board system, the terminal No. 1 is connected with a dynamic power output switch of a hot standby board of the cab signal on-board system, and the terminal No. 2 and the terminal No. 3 are grounded together. The output end of the No. 1 terminal is connected with a fuse F1 in series and then connected with a voltage stabilizing diode D1 in series, rectifying diodes D3 and D4 are connected with a voltage stabilizing diode D1 in parallel, the output end of a rectifying diode D3 serves as a second output end of the voltage transformation part to output a mainboard control signal A50C, and the output end of a rectifying diode D4 outputs a basic signal VCCA. The output end of the No. 4 terminal is connected with a fuse F2 in series and then connected with a voltage stabilizing diode D2 in series, the output end of the voltage stabilizing diode D2 is connected with a rectifying diode D5 and a rectifying diode D6 in parallel, the rectifying diode D6 is used as the third output end of the voltage transformation part to output a hot standby control signal B50C, the output end of the rectifying diode D5 outputs a basic signal VCCA, and the output end of the rectifying diode D5 and the output end of the rectifying diode D4 are used as the first output end of the voltage transformation part.
As shown IN fig. 4, the voltage regulator mainly uses a voltage comparison chip U1, wherein the voltage comparison chip has 2 comparison circuits, wherein the first input terminal 1 IN-and the second input terminal 1IN + of the voltage comparison chip U1 are both connected to the output terminal of the rectifier diode D5 and the output terminal of the rectifier diode D4, and the power supply terminal VCC of the voltage comparison chip U1 is also provided by the base signal VCCA. When the signal of the first input end 1 IN-of the input voltage comparison chip U1 is the same as the signal of the second input end 1IN + of the input voltage comparison chip U1, the first output end 1OUT of the voltage comparison chip U1 outputs a high level signal to turn on the transistor Q1, then the terminal No. 4 and the terminal No. 8 IN the relay K1 are communicated, and the output end of the rectifier diode D5 and the basic signal VCCA output by the output end of the rectifier diode D4 are used as the power supply signal VCCP.
As shown IN fig. 5, the comparing module 2 specifically includes a voltage comparing chip U2, wherein a first input terminal 1IN + of the voltage comparing chip U2 is connected to an output terminal of the relay K1, i.e., connected to the power supply signal VCCP. The second input terminal 1 IN-of the voltage comparing chip U2 is connected to the output terminal of the rectifying diode D3, i.e., to the motherboard control signal A50C. When the motherboard control signal a50C is smaller than the power supply signal VCCP, the first output terminal 1OUT of the voltage comparison chip U2 outputs a low level, the triode Q3 is turned off, and the motherboard indicator light 3 is turned off. When the motherboard control signal a50C is equal to the power supply signal VCCP, the first output terminal 1OUT of the voltage comparing chip U2 outputs a high level, the transistor Q3 is turned on, and the motherboard indicator light 3 is turned on. Similarly, the power terminal VCC of the voltage comparing chip U2 is connected to the output terminal of the power signal relay K1, i.e., to the power signal VCCP, and the third input terminal 2 IN-of the voltage comparing chip U2 is connected to the output terminal of the rectifier diode D6, i.e., to the hot standby board control signal B50C. The fourth input 2IN + of the voltage comparing chip U2 is connected to the output of the relay K1, i.e., to the power supply signal VCCP. When the hot standby board control signal B50C is equal to the power supply signal VCCP, the second output terminal 2OUT of the voltage comparison chip U2 outputs a high level, the triode Q4 is closed, and the hot standby board indicator lamp 4 is turned on; when the hot standby board control signal B50C is smaller than the power signal VCCP, the second output terminal 2OUT of the voltage comparing chip U2 outputs a low level, the transistor Q4 is turned off, and the hot standby board indicator lamp 4 is turned off.
In addition, in some specific embodiments, the foregoing scheme further includes a first electronic control switch and a buzzer, wherein a control end of the first electronic control switch is connected to the first output end of the comparison module 2, when the first electronic control switch is turned on after receiving the motherboard turn-off signal, a power end of the buzzer is connected to the first output end of the voltage stabilizing part through the first electronic control switch, and when the first electronic control switch is turned on, the power end of the buzzer is connected to the first output end of the voltage stabilizing part, and the buzzer sounds to prompt that the motherboard works abnormally. In addition, the above scheme further includes a second electronic control switch and a reset button, the second electronic control switch is connected in series between the first electronic control switch and the first output end of the voltage stabilizing part, a first control end of the second electronic control switch is connected with the reset button, when the reset button is operated, the second electronic control switch, a power supply end of the buzzer and the first output end of the voltage stabilizing part are disconnected, and the buzzer stops working. In addition, when the motherboard control signal is equal to the power signal, the first output end of the comparison module 2 outputs a motherboard starting signal, the second control end of the second electronic control switch is connected with the first output end of the comparison module 2, the second electronic control switch is closed after receiving the motherboard starting signal, and the first electronic control switch is connected with the first output end of the voltage stabilizing part. A third input terminal of the voltage stabilizing part is connected with a first output terminal of the voltage stabilizing part, and a second output terminal of the voltage stabilizing part outputs a reference power signal when the base signal is equal to the power signal; and the power supply end of the second electric control switch and the power supply end of the first electric control switch are both connected with the second output end of the voltage stabilizing part.
As shown IN fig. 4, the third input terminal 2IN + of the voltage comparing chip U1 is connected to the output terminal of the relay K1, i.e., connected to the power supply signal VCCP; the fourth input terminal 2IN of the voltage comparing chip U1 is connected to the output terminal of the rectifying diode D5 and the output terminal of the rectifying diode D4, i.e., to the base signal VCCA, and the second output terminal 2OUT of the voltage comparing chip U1 outputs the base power signal VCCR when the base signal VCCA is equal to the power signal VCCP. The basic power supply signal VCCR supplies power to the first electrically controlled switch and the second electrically controlled switch. As shown in fig. 6, the first electrically controlled switch is a relay K2, the second electrically controlled switch is a latching relay K3, one end of the reset button SWP is connected to the first control end of the latching relay K3, the second control end of the latching relay K3 is connected to the output end of the transistor Q3, when the transistor Q3 is closed, the terminals 9 and 13 of the latching relay K3 are connected, and the terminal 13 is connected to the output end of the relay K1, that is, the VCCP is connected. When the transistor Q3 is turned off, the terminals No. 9 and No. 13 of the latching relay K3 remain on until the reset button SWP is operated, and the terminals No. 9 and No. 13 of the latching relay K3 are not turned off. The control end of the relay K2 is connected with the output end of the Q3, and when the Q3 is closed, the No. 4 terminal and the No. 6 terminal of the relay K2 are disconnected; when Q3 is turned off, the No. 4 and No. 6 terminals of the relay K2 are turned on, and the No. 4 terminal of the relay K2 is connected to the No. 9 terminal of the latching relay K3, while the No. 6 terminal of the relay K2 is connected to the power supply terminal of the buzzer BEEP.
The scheme further comprises a third electric control switch and a hot standby plate buzzer, wherein when the hot standby plate control signal received by the comparison template 2 is smaller than the power signal, a second output end of the comparison module 2 outputs a hot standby plate disconnection signal. The control end of the third electric control switch is connected with the second output end of the comparison module 2, when the third electric control switch receives the disconnection message of the hot standby board, the third electric control switch is closed, the power supply end of the hot standby board buzzer is connected with the first output end of the voltage stabilizing part through the third electric control switch, when the third electric control switch is closed, the power supply end of the hot standby board buzzer is connected with the first output end of the voltage stabilizing part, and the hot standby board buzzer sends out buzzing sound to prompt that the hot standby board works abnormally. In addition, the above scheme further includes a fourth electronic control switch and a hot standby board reset button, the fourth electronic control switch is connected in series between the third electronic control switch and the first output end of the voltage stabilizing part, a first control end of the fourth electronic control switch is connected with the hot standby board reset button, when the hot standby board reset button is operated, the fourth electronic control switch is turned on, a power supply end of the hot standby board buzzer is disconnected from the first output end of the voltage stabilizing part, and the hot standby board buzzer stops working. In addition, when the second output end of the comparison module 2 outputs a hot standby board starting signal, the second control end of the fourth electronic control switch is connected with the second output end of the comparison module 2, the fourth electronic control switch is closed after receiving the hot standby board starting signal, and the third electronic control switch is connected with the first output end of the voltage stabilizing part. And the power supply end of the third electric control switch and the power supply end of the fourth electric control switch are both connected with the second output end of the voltage stabilizing part.
As shown in fig. 7, fig. 7 shows a case where the third electronic control switch is a relay K4, and the fourth electronic control switch is a latching relay K5, where one end of the hot standby reset button SWP is connected to the first control end of the latching relay K5, the second control end of the latching relay K5 is connected to the output end of the transistor Q4, when the transistor Q4 is closed, the terminals 9 and 13 of the latching relay K5 are connected, and the terminal 13 is connected to the output end of the relay K1, that is, to connect VCCP. When the transistor Q4 is turned off, the terminals No. 9 and No. 13 of the latching relay K5 remain on until the hot standby board reset button SWP is operated, and the terminals No. 9 and No. 13 of the latching relay K5 are not turned off. The control end of the relay K4 is connected with the output end of the Q4, and when the Q4 is closed, the No. 4 terminal and the No. 6 terminal of the relay K4 are disconnected; when Q4 is turned off, the terminal No. 4 and the terminal No. 6 of the relay K2 are turned on, and the terminal No. 4 of the relay K4 is connected to the terminal No. 9 of the latching relay K5, while the terminal No. 6 of the relay K4 is connected to the power supply terminal of the hot standby board buzzer beeper BEEP.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (7)
1. A locomotive signal abnormality warning device characterized by comprising:
the voltage transformation module is used for converting a signal input into a first input end of the voltage transformation module into a power supply signal and a mainboard control signal or converting a signal input into a second input end of the voltage transformation module into the power supply signal; the first input end of the voltage transformation module is connected with a dynamic power output switch of a mainboard of the cab signal vehicle-mounted system, and the second input end of the voltage transformation module is connected with a dynamic power output switch of a hot standby board of the cab signal vehicle-mounted system; the first output end of the voltage transformation module outputs the power supply signal, and the second output end of the voltage transformation module outputs the mainboard control signal;
the first input end of the comparison module is connected with the first output end of the voltage transformation module, and the second input end of the comparison module is connected with the second output end of the voltage transformation module; the comparison module is used for comparing the magnitude of the mainboard control signal with the magnitude of the power supply signal, and when the mainboard control signal is smaller than the power supply signal, a first output end of the comparison module outputs a mainboard closing signal;
and the control end of the mainboard indicator lamp is connected with the first output end of the comparison module, and the mainboard indicator lamp is turned off after receiving the mainboard turn-off signal so as to indicate that the mainboard works abnormally.
2. The cab signal abnormality warning device according to claim 1, further comprising a hot standby board indicator lamp, wherein:
the transformation module is also used for converting a signal input to the second input end of the transformation module into a hot spare board control signal, and the third output end of the transformation module outputs the hot spare board control signal;
the third input end of the comparison module is connected with the third output end of the voltage transformation module, and when the hot standby board control signal is equal to the power supply signal, the second output end of the comparison module outputs a hot standby board starting signal;
the control end of the hot standby board indicator light is connected with the second output end of the comparison module, and the hot standby board indicator light is turned on after receiving the hot standby board turning-on signal so as to indicate that the hot standby board works normally.
3. The cab signal abnormality warning device according to claim 2, wherein the voltage transforming module includes:
the first input end of the transformation part is used as the first input end of the transformation module, and the second input end of the transformation part is used as the second input end of the transformation module; the voltage transformation part is used for converting a signal input into a first input end of the voltage transformation part into a basic signal and the mainboard control signal or converting a signal input into a second input end of the voltage transformation part into the basic signal and the hot standby board control signal, a first output end of the voltage transformation part outputs the basic signal, a second output end of the voltage transformation part serves as a second output end of the voltage transformation module to output the mainboard control signal, and a third output end of the voltage transformation part serves as a third output end of the voltage transformation module to output the hot standby board control signal;
and when the basic signal input to the first input end of the voltage stabilizing part is equal to the basic signal input to the second input end of the voltage stabilizing part, the first output end of the voltage stabilizing part serves as the first output end of the voltage transformation module to output the power supply signal.
4. The cab signal abnormality warning device according to claim 3, further comprising a first electrically controlled switch and a buzzer, wherein:
the control end of the first electric control switch is connected with the first output end of the comparison module, and the first electric control switch is closed after receiving the mainboard closing signal;
the power supply end of the buzzer is connected with the first output end of the voltage stabilizing part through the first electric control switch, and when the first electric control switch is closed, the power supply end of the buzzer is connected with the first output end of the voltage stabilizing part and sends out a buzzing sound.
5. The cab signal abnormality warning device according to claim 4, further comprising a second electrically controlled switch and a reset button, wherein:
the second electronic control switch is connected between the first electronic control switch and the first output end of the voltage stabilizing part in series, the first control end of the second electronic control switch is connected with the reset button, when the reset button is operated, the second electronic control switch is switched off, the power supply end of the buzzer is switched off from the first output end of the voltage stabilizing part, and the buzzer stops working.
6. The cab signal abnormality warning device according to claim 5, wherein:
when the mainboard control signal is equal to the power supply signal, the first output end of the comparison module outputs a mainboard starting signal;
and a second control end of the second electric control switch is connected with a first output end of the comparison module, the second electric control switch is closed after receiving the mainboard starting signal, and the first electric control switch is connected with a first output end of the voltage stabilizing part.
7. The cab signal abnormality warning device according to claim 6, wherein:
a third input terminal of the voltage stabilizing part is connected with the first output terminal of the voltage stabilizing part, and a second output terminal of the voltage stabilizing part outputs a basic power signal when the basic signal is equal to the power signal;
and the power supply end of the second electric control switch and the power supply end of the first electric control switch are both connected with the second output end of the voltage stabilizing part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920884921.7U CN210063007U (en) | 2019-06-13 | 2019-06-13 | Locomotive signal abnormity alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920884921.7U CN210063007U (en) | 2019-06-13 | 2019-06-13 | Locomotive signal abnormity alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210063007U true CN210063007U (en) | 2020-02-14 |
Family
ID=69457442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920884921.7U Active CN210063007U (en) | 2019-06-13 | 2019-06-13 | Locomotive signal abnormity alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210063007U (en) |
-
2019
- 2019-06-13 CN CN201920884921.7U patent/CN210063007U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20200350903A1 (en) | Igbt drive circuit for motor controller, and motor controller | |
| JP4155978B2 (en) | Power supply | |
| US10411459B2 (en) | Photovoltaic power generation system and method for shutting down the same | |
| CN209949004U (en) | Motor drive system, motor driver and electric automobile | |
| CN201438268U (en) | Dual-power switching control device | |
| US10910982B2 (en) | Air conditioner | |
| CN210063007U (en) | Locomotive signal abnormity alarm device | |
| CN103144542A (en) | Automatic power interruption control system | |
| JP2003235119A (en) | Power distribution device | |
| US20230202303A1 (en) | Starting system and electric vehicle | |
| CN111404423A (en) | Safe torque turn-off control method and circuit and motor controller | |
| CN216122213U (en) | Switching power supply, power battery system and vehicle | |
| CN214429313U (en) | Power supply switching circuit | |
| US20130305063A1 (en) | Ups device and ups structure with prolonged power supply | |
| CN211018651U (en) | Power module and network security information protection device applying same | |
| CN215340252U (en) | State detection module for electric equipment | |
| CN217181618U (en) | Wireless alarm system | |
| CN219304714U (en) | Power supply system and power supply device | |
| CN211630101U (en) | Safe torque turn-off control circuit and motor controller | |
| CN215681907U (en) | Vehicle power supply redundancy system and vehicle | |
| CN211859725U (en) | Nuclear power station auxiliary power system | |
| CN211859724U (en) | Nuclear power station auxiliary power system | |
| CN218917968U (en) | Continuous monitoring device and supervisory equipment cut off power supply | |
| CN111942271B (en) | Safety circuit for car lamp and control method thereof | |
| CN211930340U (en) | Nuclear power station auxiliary power system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |