CN201742164U - Monitoring control device of low-voltage switch cabinet set - Google Patents
Monitoring control device of low-voltage switch cabinet set Download PDFInfo
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- CN201742164U CN201742164U CN2010202426595U CN201020242659U CN201742164U CN 201742164 U CN201742164 U CN 201742164U CN 2010202426595 U CN2010202426595 U CN 2010202426595U CN 201020242659 U CN201020242659 U CN 201020242659U CN 201742164 U CN201742164 U CN 201742164U
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Abstract
The utility model relates to a monitoring control device of a low-voltage switch cabinet set. The utility model is characterized in that the monitoring control device mainly comprises a DSP micro-processor, a voltage acquisition circuit, a current acquisition circuit, an A/D analog-to-digital converter, a keyboard, an LCD display and a control signal output circuit, wherein the voltage acquisition circuit and the current acquisition circuit acquire a voltage value and a current value that are to be monitored in the low-voltage switch cabinet set, and the output ends of the voltage acquisition circuit and the current acquisition circuit are processed by the A/D analog-to-digital converter and then are connected into the input port of the DSP micro-processor; the input port of the DSP micro-processor is connected into a switch value standing for the on/off of each switch in the low-voltage switch cabinet set; the LCD display and the control signal output circuit are connected with the output port of the DSP micro-processor; and the output of the control signal output circuit is used for controlling the action of each switch in the low-voltage switch cabinet set. With the adoption of the DSP micro-processor, the monitoring control device has strong function and has the monitoring function, the control function, the metering function and the man-machine conversation function.
Description
Technical field
The utility model relates to a kind of monitoring and control device of low-voltage complete switch cabinet.
Background technology
Electrical network is one of economic lifeline of country, the most important thing is device security in the electrical network, in a single day main power equipment has an accident, in most cases can cause unexpected, large-scale, power failure for a long time, can form a disaster to local industrial and agricultural production, railway transportation, communication and people's lives, the social influence that causes is big and make the economic loss heaviness.In order to ensure the safe operation of electrical network, countries in the world are all in research and the Products Development of strengthening the monitoring of electric power system, control, protection, information of managingization, automation, networking technology.Still there is gap about 10 years in China with world's advanced technology in this regard, catch up with advanced international standard, realizing China's electric power system comprehensive informationization, automation, guarantee safe, the efficient operation of power network, is that our power equipment is researched and developed, the challenge of manufacturing enterprise.
Low-voltage complete switch cabinet in the existing electrical network scarcely is equipped with the intelligent monitoring control device, and is comparatively backward.For the requirement that the intelligent electrical network that satisfies country's proposition is now transformed, must develop a kind of monitoring and control device that is used for the low-voltage complete switch cabinet.
Summary of the invention
The utility model purpose provides a kind of monitoring control device of low-voltage complete switch cabinet, low-voltage complete switch cabinet is carried out the automation control of parameter monitoring such as voltage, electric current and operating state with this.
For achieving the above object, the technical solution adopted in the utility model is: a kind of monitoring control device of low-voltage complete switch cabinet, mainly form by DSP microprocessor, voltage collection circuit, current acquisition circuit, A/D analog to digital converter, keyboard, LCD display and control signal output circuit; Described voltage collection circuit and current acquisition circuit are gathered electric current and voltage value to be monitored in the low-voltage complete switch cabinet, and the output of voltage collection circuit and current acquisition circuit inserts the input port of DSP microprocessor after the A/D analog to digital converter is handled; And the input port of DSP microprocessor inserts each switch of the representative deciliter state of switch amount in the low-voltage complete switch cabinet; Described keyboard is connected in the input port of DSP microprocessor; Described LCD display and control signal output circuit are connected in the output port of DSP microprocessor, and the output of described control signal output circuit is used for controlling each switch motion of low-voltage complete switch cabinet.
Related content in the technique scheme is explained as follows:
1, in the such scheme, described DSP microprocessor, i.e. Digital Signal Processing (digital signal processor) microprocessor, it is a device of handling bulk information with digital signal.
2, in the such scheme, be connected with a CAN bus communication interface on the described DSP microprocessor, can carry out telecommunication to this monitoring control device by the CAN bus with this.Specifically by a computer as host computer, through the CAN bus with the low-voltage distribution local area network (LAN) in the monitoring control device (as slave computer) of each low-voltage complete switch cabinet connect into a whole set of control system, thereby the user sends instruction to host computer and gets final product, and host computer can be sent to instruction each monitoring control device.The CAN bus communication belongs to the category of fieldbus, and it is the distributed control of a kind of effective support or the serial communication network of control in real time, has that antijamming capability is strong, data communication is real-time, the reliable advantage of information transmission.
3, in the such scheme, also be connected with the guard signal output circuit on the output port of described DSP microprocessor.Can monitor electric current, the voltage signal of input, output protection signal when improper with this this monitoring control device.
Because the application of technique scheme the utlity model has following effect:
The utility model adopts the DSP microprocessor, by collection and the processing to the real time data at scene, can show alternating voltage on the low-voltage complete equipment, electric current, electrical parameter such as meritorious; Can monitor with display case in the jumping of deciliter state, circuit breaker of each switch close the state parameter of state etc. and functional unit; Can monitor fault messages such as display alarm overvoltage, overcurrent, under-voltage, phase shortage, short circuit, can clock, write down and handle event sequence.The utility model monitoring and low-voltage complete switch cabinet of control device monitoring show relevant numerical value and state status with icon and data on liquid crystal display screen.
The utility model monitoring and control device have function of measuring, can reach the function of alternating current ammeter, voltmeter, the meritorious varmeter of three-phase, can in electric power network, the automation control system to the measurement and the demonstration of electric parameters such as current/voltage power, accuracy class can reach 0.2 grade of level, can replace original pointer instrument fully.The utility model monitoring and control device have the human-computer dialogue function, utilize keyboard to realize that page turning demonstrates multichannel (as 6 tunnel) voltage, multichannel (as 6 tunnel) electric current, multichannel (as 16 tunnel) external switch amount state, can be by the ON/OFF of keyboard field control multichannel (as 12 tunnel) switching value.And, by CAN bus communication interface can with upper machine communication, realize remote control, remote measurement, remote regulating, communication function.
Description of drawings
Accompanying drawing 1 is the utility model example structure block diagram.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment: see shown in the accompanying drawing 1,
A kind of monitoring control device of low-voltage complete switch cabinet mainly is made up of a DSP microprocessor, voltage collection circuit, current acquisition circuit, A/D analog to digital converter, keyboard, LCD display and control signal output circuit; Electric current and voltage value to be monitored (can be gathered multichannel in described voltage collection circuit and the current acquisition circuit collection low-voltage complete switch cabinet, such as 6 the tunnel), the output of voltage collection circuit and current acquisition circuit inserts the input port of DSP microprocessor after the A/D analog to digital converter is handled; And, each switch of the representative deciliter state of switch amount in the input port access low-voltage complete switch cabinet of DSP microprocessor (but multichannel, such as 10 the tunnel); Described keyboard is connected in the input port of DSP microprocessor; Described LCD display and control signal output circuit are connected in the output port of DSP microprocessor.
Described control signal output circuit is specially signal output port, and for example 12 road signal output ports are used for controlling each switch motion of low-voltage complete switch cabinet.Also be connected with the guard signal output circuit on the output port of described DSP microprocessor, with this exportable multichannel guard signal.
Also being connected with a CAN bus communication interface on the described DSP microprocessor can be via CAN bus and host computer telecommunication with the monitoring control device of this present embodiment low-voltage complete switch cabinet.
Described current acquisition circuit is specially current transformer.
Because the present embodiment core is the DSP microprocessor, come control and treatment information by the DSP microprocessor, the mathematical operational ability of DSP microprocessor and arithmetic speed are higher than single-chip microcomputer far away, there are abundant instruction set and bigger memory headroom, I/O interface is many, low in energy consumption, so present embodiment monitoring control device is powerful, present embodiment monitoring control device possesses monitoring function, controlled function, function of measuring and human-computer dialogue function simultaneously.
The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection range of the present utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection range of the present utility model.
Claims (3)
1. the monitoring control device of a low-voltage complete switch cabinet is characterized in that: mainly be made up of DSP microprocessor, voltage collection circuit, current acquisition circuit, A/D analog to digital converter, keyboard, LCD display and control signal output circuit; Described voltage collection circuit and current acquisition circuit are gathered electric current and voltage value to be monitored in the low-voltage complete switch cabinet, and the output of voltage collection circuit and current acquisition circuit inserts the input port of DSP microprocessor after the A/D analog to digital converter is handled; And the input port of DSP microprocessor inserts each switch of the representative deciliter state of switch amount in the low-voltage complete switch cabinet; Described keyboard is connected in the input port of DSP microprocessor; Described LCD display and control signal output circuit are connected in the output port of DSP microprocessor, and the output of described control signal output circuit is used for controlling each switch motion of low-voltage complete switch cabinet.
2. according to the monitoring control device of the described low-voltage complete switch cabinet of claim 1, it is characterized in that: be connected with a CAN bus communication interface on the described DSP microprocessor.
3. according to the monitoring control device of the described low-voltage complete switch cabinet of claim 1, it is characterized in that: also be connected with the guard signal output circuit on the output port of described DSP microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202426595U CN201742164U (en) | 2010-06-29 | 2010-06-29 | Monitoring control device of low-voltage switch cabinet set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202426595U CN201742164U (en) | 2010-06-29 | 2010-06-29 | Monitoring control device of low-voltage switch cabinet set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201742164U true CN201742164U (en) | 2011-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202426595U Expired - Lifetime CN201742164U (en) | 2010-06-29 | 2010-06-29 | Monitoring control device of low-voltage switch cabinet set |
Country Status (1)
| Country | Link |
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| CN (1) | CN201742164U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255388A (en) * | 2011-07-18 | 2011-11-23 | 航天科工深圳（集团）有限公司 | Distributed distribution network terminal device |
| CN102497015A (en) * | 2011-11-16 | 2012-06-13 | 江苏正佰电气有限公司 | Low voltage switchgear monitoring device |
-
2010
- 2010-06-29 CN CN2010202426595U patent/CN201742164U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255388A (en) * | 2011-07-18 | 2011-11-23 | 航天科工深圳（集团）有限公司 | Distributed distribution network terminal device |
| CN102255388B (en) * | 2011-07-18 | 2013-12-18 | 航天科工深圳（集团）有限公司 | Distributed distribution network terminal device |
| CN102497015A (en) * | 2011-11-16 | 2012-06-13 | 江苏正佰电气有限公司 | Low voltage switchgear monitoring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110209 |
|
| CX01 | Expiry of patent term |