CN107807627B - Real-time display system and method for input state of electrical equipment - Google Patents
Real-time display system and method for input state of electrical equipment Download PDFInfo
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- CN107807627B CN107807627B CN201710916356.3A CN201710916356A CN107807627B CN 107807627 B CN107807627 B CN 107807627B CN 201710916356 A CN201710916356 A CN 201710916356A CN 107807627 B CN107807627 B CN 107807627B
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- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
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Abstract
The invention discloses a real-time display system for the input state of electrical equipment, which comprises: when the power is initially powered on or a detection instruction is not received in a first preset time period, the detection circuit is connected, the programmable logic device receives detection data after waiting for a second preset time period, the programmable logic device controls the input state of the display device, and then the detection circuit is disconnected; and when a detection instruction is received within a first preset time period, the programmable logic device controls the time for connecting the detection circuit according to a preset timing method, the programmable logic device judges the time for connecting the detection circuit of the detection instruction according to the counting method, the detection circuit transmits detection data of the time required by the detection instruction to the programmable logic device, and the programmable logic device controls and displays the input state of the electrical equipment according to preset logic. The invention also discloses a real-time display method for the input state of the electrical equipment. The invention can be applied to various safety platforms, can reduce the real-time display power consumption of the input state of the electrical equipment and improve the display safety.
Description
Technical Field
The invention relates to the field of rail transit, in particular to a real-time display system for an input state of electrical equipment. The invention also relates to a real-time display method for the input state of the electrical equipment.
Background
In a safety platform (including but not limited to on-board equipment of a subway or a tram), correctly detecting the input state of electrical equipment and displaying the input state in real time are important guarantees for ensuring the safety of a safety platform system.
At present, the technical means of displaying the real-time input state of the electrical equipment is less, the display equipment is mainly connected in series in a circuit to realize the display of the real-time input state of the electrical equipment, although the structure is simple, the display of the real-time input state of the electrical equipment is technically convenient to realize. However, in the safety platform, due to the characteristics of a large number of input points of the electrical equipment, wide distribution of the input points of the electrical equipment, high-voltage equipment and other electrical equipment existing in the platform, the display equipment is connected in series in the circuit, and the real-time display of the input state can be realized only by large power consumption, so that the equipment temperature is too high, the energy is wasted, and the safety of the system is affected. In addition, in order to display the series connection of the plurality of electrical devices, the operation of the plurality of electrical devices is affected by the occurrence of the open circuit/short circuit, and the reliability is lowered.
Disclosure of Invention
The invention aims to provide a real-time display system for the input state of electrical equipment of a safety platform. The invention also provides a real-time display method for the input state of the safety platform electrical equipment.
In order to solve the above technical problem, the present invention provides a real-time display system for an input status of an electrical device, comprising: the device comprises an electrical equipment input state detection host, a programmable logic device, a detection circuit and an input state display device; programmable logic devices include, but are not limited to, FPGAs, CPLDs.
The programmable logic device is respectively connected with the electrical equipment input state detection host, the detection circuit and the input state display device;
the electric equipment input state real-time display system adopts the following working modes:
when the power is initially powered on or a detection instruction of the electrical equipment input state detection host is not received in a first preset time period, the detection circuit is connected, the programmable logic device receives detection data after waiting for a second preset time period, the programmable logic device controls the input state display device to display the input state of the electrical equipment according to preset logic, and then the detection circuit is disconnected;
and when a detection instruction of the electrical equipment input state detection host is received within a first preset time period, the programmable logic device controls the time for connecting the detection circuit according to a preset timing method, the programmable logic device judges the time for connecting the detection circuit of the detection instruction according to the counting method, the detection circuit transmits detection data of the time required by the detection instruction to the programmable logic device, and the programmable logic device controls the input state display device to display the input state of the electrical equipment according to the preset logic.
In a further refinement, the counting method is a parity counting method.
The method is further improved, the programmable logic device judges that the time required by the detection instruction is odd, the detection circuit is communicated at the odd time to obtain the detection data at the odd time, and the programmable logic device controls the input state display device to display the input state of the electrical equipment according to the preset logic;
and the programmable logic device judges that the time required by the detection instruction is an even number, the detection circuit is communicated at the even number time to obtain even number time detection data, and the programmable logic device controls the input state display device to display the input state of the electrical equipment according to preset logic.
In a further refinement, the first time period is between 10ms and 1000ms, preferably 100 ms.
In a further refinement, the second time period is between 1ms and 10ms, preferably 2 ms.
The invention provides a real-time display method for an input state of electrical equipment, which comprises the following steps:
when the power is initially powered on or a detection instruction is not received in a first preset time period, connecting a detection signal source, waiting for receiving detection data in a second preset time period, controlling and displaying the input state of the electrical equipment according to preset logic, and then disconnecting the detection signal source;
and receiving the detection instruction within the first preset time period, controlling the time for connecting the detection circuit according to a preset timing method, judging the time for connecting the detection circuit of the detection instruction according to the counting method, obtaining detection data of the time required by the detection instruction, and displaying the detection data of the time required by the detection instruction as the input state of the electrical equipment according to a preset logic.
In a further refinement, the counting method is a parity counting method.
Further improving, when the time required by the detection instruction is odd, connecting the detection signal source at the odd time to obtain the detection data at the odd time, and displaying the detection data at the odd time as the input state of the electrical equipment according to the preset logic;
and when the time required by the detection instruction is an even number, connecting the detection signal source at the even number time to obtain even number time detection data, and displaying the even number time detection data as the input state of the electrical equipment according to preset logic.
In a further refinement, the first time period is between 10ms and 1000ms, preferably 100 ms.
In a further refinement, the second time period is between 1ms and 10ms, preferably 2 ms.
The invention can be used in any safety platform, and the invention can be used in a programmable logic device, and can realize reliable data transmission through a communication protocol of parity check; the real-time display of the input state is realized by a method combining system self-detection and instruction detection; the time of connecting/disconnecting the detection circuit is controlled by a logic control mechanism, so that the purposes of reducing the system power consumption (the total power consumption is reduced by about 80%) and ensuring the system safety are achieved.
The invention has the technical effects that:
1. in a high-voltage, large-current and multi-input environment, the detection circuit is connected or disconnected in the circuit for control, so that the power consumption of the system is reduced, and the reliability of the system is ensured;
2. when the input state is detected in the power-on instant or when the CPU has no instruction for a long time, the self-detection is realized through the control of the programmable logic device, and the input state is displayed in real time;
3. the invention has higher communication reliability, adopts a parity check mechanism and ensures reliable transmission between the CPU and the programmable logic device;
4. when the CPU transmits the instruction to the programmable logic device, the programmable logic device controls the connection/disconnection time of the detection circuit according to the odd-even instruction, and meanwhile, the CPU rechecks the detection data to ensure the system safety.
Drawings
The invention will be described in further detail with reference to the following detailed description and accompanying drawings:
FIG. 1 is a schematic diagram of an example of the application of the present invention.
FIG. 2 is a schematic flow chart of the self-test implemented in the present invention.
FIG. 3 is a flow chart illustrating the combination of self-test and host control implemented in the present invention.
Detailed Description
An embodiment of a real-time display system for an input state of an electrical device according to the present invention is shown in fig. 1, and includes: an electrical equipment input state detection host (a CPU processor), a programmable logic device (FPAG processing), a detection circuit (HW detection circuit) and an input state display device (not shown in the figure, and an LED indicator lamp can be adopted); programmable logic devices include, but are not limited to, FPGAs, CPLDs.
The programmable logic device is respectively connected with the electrical equipment input state detection host, the detection circuit and the input state display device;
the electric equipment input state real-time display system adopts the following working modes:
when the power is initially powered on or a detection instruction of the electrical equipment input state detection host is not received in a first preset time period, the detection circuit is connected, the programmable logic device receives detection data after waiting for a second preset time period, the programmable logic device controls the input state display device to display the input state of the electrical equipment according to preset logic, and then the detection circuit is disconnected;
when a detection instruction of the electrical equipment input state detection host is received within a first preset time period, the programmable logic device controls the time for connecting the detection circuit according to an odd-even counting method, the programmable logic device judges whether the time for connecting the detection circuit of the detection instruction is odd time or even time, the detection circuit transmits detection data of the time (odd time or even time) required by the detection instruction to the programmable logic device, and the programmable logic device controls the input state display device to display the input state of the electrical equipment at the odd time or the even time according to preset logic.
The first period of time is 10ms to 1000ms, preferably 100ms, and the second period of time is 1ms to 10ms, preferably 2 ms.
The invention provides a real-time display method for an input state of electrical equipment, which comprises the following steps:
referring to fig. 2, when the power is initially turned on or no detection instruction is received within a first preset time period, the detection signal source is connected, the detection signal source waits for a second preset time period to receive detection data, the input state of the electrical device is controlled and displayed according to preset logic, and then the detection signal source is disconnected;
referring to fig. 3, when a detection command is received within a first preset time period, the connection detection circuit time is controlled according to the odd-even counting method, and the connection detection circuit time of the detection command is determined to be an odd time or an even time, the detection circuit obtains detection data of the time required by the detection command, and displays the detection data of the time required by the detection command (the odd time or the even time) as the input state of the electrical device according to a preset logic.
The first period of time is 10ms to 1000ms, preferably 100ms, and the second period of time is 1ms to 10ms, preferably 2 ms.
The present invention has been described in detail with reference to the specific embodiments and examples, but these are not intended to limit the present invention. Many variations and modifications may be made by one of ordinary skill in the art without departing from the principles of the present invention, which should also be considered as within the scope of the present invention.
Claims (10)
1. An electrical device input state real-time display system, comprising: the device comprises an electrical equipment input state detection host, a programmable logic device, a detection circuit and an input state display device;
the programmable logic device is respectively connected with the electrical equipment input state detection host, the detection circuit and the input state display device;
the electric equipment input state real-time display system adopts the following working modes:
when the power is initially powered on or a detection instruction of the electrical equipment input state detection host is not received in a first preset time period, the detection circuit is connected, the programmable logic device receives detection data after waiting for a second preset time period, the programmable logic device controls the input state display device to display the input state of the electrical equipment according to preset logic, and then the detection circuit is disconnected;
when a detection instruction of the electrical equipment input state detection host is received within a first preset time period, the programmable logic device controls the time for connecting the detection circuit according to a preset timing method, the programmable logic device judges the time for connecting the detection circuit of the detection instruction according to a preset counting method, the detection circuit transmits detection data of the time required by the detection instruction to the programmable logic device, and the programmable logic device controls the input state display device to display the input state of the electrical equipment according to the preset logic.
2. The real-time display system of the input state of the electrical device according to claim 1, wherein: the preset counting method is a parity counting method.
3. The real-time display system of the input state of the electrical device according to claim 2, wherein: the programmable logic device judges that the time required by the detection instruction is odd, the programmable logic device is communicated with the detection circuit at the odd time to obtain odd time detection data, and the programmable logic device controls the input state display device to display the input state of the electrical equipment according to preset logic;
and the programmable logic device judges that the time required by the detection instruction is an even number, the detection circuit is communicated at the even number time to obtain even number time detection data, and the programmable logic device controls the input state display device to display the input state of the electrical equipment according to preset logic.
4. The real-time display system of the input state of the electrical device according to claim 1, wherein: the first preset time period is 10ms-1000 ms.
5. The real-time display system of the input state of the electrical device according to claim 1, wherein: the second preset time period is 1ms-10 ms.
6. A real-time display method for input states of electrical equipment is characterized by comprising the following steps:
when the power is initially powered on or a detection instruction is not received in a first preset time period, connecting a detection signal source, waiting for receiving detection data in a second preset time period, controlling and displaying the input state of the electrical equipment according to preset logic, and then disconnecting the detection signal source;
and receiving the detection instruction within the first preset time period, controlling the time for connecting the detection circuit according to a preset timing method, judging the time for connecting the detection circuit of the detection instruction according to a preset counting method, obtaining detection data of the time required by the detection instruction, and displaying the detection data of the time required by the detection instruction as the input state of the electrical equipment according to a preset logic.
7. The real-time display method of the input state of the electrical device according to claim 6, characterized in that: the preset counting method is a parity counting method.
8. The real-time display method of the input state of the electrical device according to claim 6, characterized in that: when the time required by the detection instruction is odd, connecting a detection signal source at the odd time to obtain odd time detection data, and displaying the odd time detection data as an input state of the electrical equipment according to preset logic;
and when the time required by the detection instruction is an even number, connecting the detection signal source at the even number time to obtain even number time detection data, and displaying the even number time detection data as the input state of the electrical equipment according to preset logic.
9. The real-time display method of the input state of the electrical device according to claim 6, characterized in that: the first preset time period is 10ms-100 ms.
10. The real-time display method of the input state of the electrical device according to claim 6, characterized in that: the second preset time period is 1ms-10 ms.
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| CN201710916356.3A CN107807627B (en) | 2017-09-30 | 2017-09-30 | Real-time display system and method for input state of electrical equipment |
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| CN201710916356.3A CN107807627B (en) | 2017-09-30 | 2017-09-30 | Real-time display system and method for input state of electrical equipment |
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| CN107807627B true CN107807627B (en) | 2020-04-21 |
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| US6279036B1 (en) * | 1998-05-15 | 2001-08-21 | International Business Machines Corporation | Method and apparatus for detecting actual viewing or electronic advertisements |
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| CN106200609A (en) * | 2015-04-29 | 2016-12-07 | 陕西中交天健车联网信息技术有限公司 | Automatically the device and method of engine of heavy-duty car ECU software version is tested |
| CN106932714A (en) * | 2017-02-28 | 2017-07-07 | 中国人民解放军空军工程大学 | Aircraft electrical box comprehensive detection system and detection method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030176798A1 (en) * | 2002-02-12 | 2003-09-18 | Simon Arnold Baruch | Method and device for detecting cardiac arrest and automatically alerting emergency personnel of wearer's location |
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2017
- 2017-09-30 CN CN201710916356.3A patent/CN107807627B/en active Active
Patent Citations (7)
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| US6279036B1 (en) * | 1998-05-15 | 2001-08-21 | International Business Machines Corporation | Method and apparatus for detecting actual viewing or electronic advertisements |
| JP2011259153A (en) * | 2010-06-08 | 2011-12-22 | Sharp Corp | Electrical equipment, power supply controller and hearing aid |
| CN104142442A (en) * | 2013-05-10 | 2014-11-12 | 盛群半导体股份有限公司 | Tri-state input detection circuit with extremely low power consumption and input state detection method thereof |
| CN104461717A (en) * | 2013-09-18 | 2015-03-25 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN104880596A (en) * | 2015-04-24 | 2015-09-02 | 国网四川省电力公司电力科学研究院 | Volt-ampere vector wireless test method used for transformer substation system debugging |
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