CN203070067U - Parking lot controller - Google Patents
Parking lot controller Download PDFInfo
- Publication number
- CN203070067U CN203070067U CN2013200327870U CN201320032787U CN203070067U CN 203070067 U CN203070067 U CN 203070067U CN 2013200327870 U CN2013200327870 U CN 2013200327870U CN 201320032787 U CN201320032787 U CN 201320032787U CN 203070067 U CN203070067 U CN 203070067U
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- CN
- China
- Prior art keywords
- control unit
- unit
- main control
- interface
- parking lot
- 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.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The utility model discloses a parking lot controller which comprises a processing unit and an IO unit used for converting data of the processing unit and level signals of controlled IO equipment. The processing unit contains a first master control unit and a second master control unit. The IO unit contains an IO interface unit. The first master control unit and the second master control unit are in a communication link through internal bus. The master control units are respectively connected with the IO interface unit. The first master control unit and the IO interface unit form an effective communication link. The second master control unit is used to form an effective communication link with the IO interface unit when an effective communication link is not formed between the first master control unit and the IO interface unit. By the adoption of the parking lot controller, uninterrupted work of the whole parking lot controller is guaranteed, and simultaneously, complexity for realization and corresponding costs are reduced.
Description
Technical field
The utility model relates to monitoring field, parking lot, is specifically related to a kind of parking lot controller.
Background technology
The parking lot controller can break down unavoidably owing to work long hours under rugged surroundings.Safeguarding after the fault not only needs a large amount of human costs of cost and material cost, the more important thing is that service disruption has greatly influenced user's experience, brings aspect invisible losses such as brand.
Summary of the invention
In view of this, the utility model provides a kind of parking lot controller, to reduce the probability of parking lot controller failure.
A kind of parking lot controller, the IO unit that comprises processing unit and be used for the level signal of the data of processing unit and controlled IO equipment is changed mutually, described processing unit comprises first main control unit and second main control unit, described IO unit comprises the IO interface unit, connect by the internal bus communication between described first main control unit and second main control unit, described main control unit is electrically connected with described IO interface unit respectively, described first main control unit forms effective communication with described IO interface unit and is connected, described second main control unit is used for, after first main control unit and described IO interface unit do not form effective communication and be connected, form effective communication with described IO interface unit and be connected.
Described internal bus is the bus of supporting broadcasting.
Described internal bus is Ethernet or CAN bus.
When described processing unit only comprised two main control units, internal bus was the interface of supporting both-way communication.
Communication interface between described first main control unit or second main control unit and the described IO interface unit adopts the interface of supporting both-way communication.
The interface of described support both-way communication is RS232 interface or RS485 interface.
The beneficial effects of the utility model are: because the exterior I O equipment of parking lot controller is many, and the signal level size of different IO equipment, transmission direction may be inequality, and some signal also needs to carry out electrical isolation, if therefore processing unit and IO unit carry out active and standby switching together, circuit structure and the higher cost of more complicated need be arranged.The utility model only adopts Redundancy Design to the key component processing unit of system, by a plurality of main control units are set, when one of them main control unit can't be worked because of failure and other reasons, come to carry out communication with the IO interface unit by activating the standby main control unit of another one, guaranteed that whole parking lot controller can non-stop run, when switching simultaneously, do not need to carry out the direct-cut operation of multichannel IO interface between main control unit and the IO interface unit again, thereby reduce complexity and the corresponding cost of realizing.
Description of drawings
Fig. 1 is the block diagram of the parking lot controller of a kind of embodiment of the utility model.
Embodiment
Below with reference to accompanying drawing, specific embodiment of the utility model is described in further detail.
As shown in Figure 1, the parking lot controller of a kind of embodiment, comprise processing unit and IO unit, processing unit comprises two main control units at least, for example first main control unit and second main control unit, the IO unit is for the data that processing unit is sended over, be converted into the output of IO level signal, and be transferred to the controlled IO equipment that is connected with the IO interface unit, for example the IO equipment among the figure, the 2nd IO equipment ... NIO equipment, simultaneously, the IO level signal input with the outside also is responsible in the IO unit, be converted into communication data, send to processing unit.
Described first main control unit is connected by the internal bus communication with second main control unit.Each main control unit is electrically connected with the IO interface unit respectively.
In a plurality of main control units, a certain moment only has a main control unit to be in state of activation, with the communication of IO interface board, and the work of control IO interface unit.
The main control unit that activates, first main control unit for example is by the state of internal bus to other main control units broadcasting oneself, after other main control units receive the broadcast of first main control unit, can judge that then first main control unit still is in state of activation, self continue to keep unactivated state.Simultaneously, first main control unit also forms effective communication with the IO interface unit and is connected, and sends to the IO interface unit to show the message that lays oneself open to activation.
When first main control unit breaks down, in the setting-up time section, all the other main control units do not receive the broadcast that is in state of activation from showing of first main control unit, then can for example activate second main control unit with activating one of them remaining main control unit.Simultaneously, the IO interface unit also fails to receive the message that the surface of sending from first main control unit is in state of activation, thereby stopping to form effective communication with first main control unit is connected, and then, second main control unit forms effective communication with the IO interface unit and is connected, taken over the IO interface unit, proceeded corresponding service and handle, controlled IO equipment has been controlled.
Certainly, when system needs to be serviced, also can realize switching between the main control unit by instruction, for example first main control unit be sent and stop activation instruction, second main control unit is sent activation instruction.
Can preestablish the order that main control unit is activated, such as, main control unit is numbered, little of big activating successively from numbering.
Described internal bus can adopt the bus of any support broadcasting, for example Ethernet or CAN bus etc.
Communication interface between main control unit and the IO interface unit can be the bus interface of any support both-way communication, for example RS232 interface or RS485 interface etc.
Claims (6)
1. parking lot controller, the IO unit that comprises processing unit and be used for the level signal of the data of processing unit and controlled IO equipment is changed mutually, it is characterized in that: described processing unit comprises first main control unit and second main control unit, described IO unit comprises the IO interface unit, connect by the internal bus communication between described first main control unit and second main control unit, described main control unit is electrically connected with described IO interface unit respectively, described first main control unit forms effective communication with described IO interface unit and is connected, described second main control unit is used for, after first main control unit and described IO interface unit do not form effective communication and be connected, form effective communication with described IO interface unit and be connected.
2. parking lot as claimed in claim 1 controller, it is characterized in that: described internal bus is the bus of supporting broadcasting.
3. parking lot as claimed in claim 2 controller, it is characterized in that: described internal bus is Ethernet or CAN bus.
4. parking lot as claimed in claim 1 controller, it is characterized in that: when described processing unit only comprised two main control units, internal bus was the interface of supporting both-way communication.
5. parking lot as claimed in claim 1 controller, it is characterized in that: the communication interface between described first main control unit or second main control unit and the described IO interface unit adopts the interface of supporting both-way communication.
6. as claim 4 or 5 described parking lot controllers, it is characterized in that: the interface of described support both-way communication is RS232 interface or RS485 interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200327870U CN203070067U (en) | 2013-01-22 | 2013-01-22 | Parking lot controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200327870U CN203070067U (en) | 2013-01-22 | 2013-01-22 | Parking lot controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203070067U true CN203070067U (en) | 2013-07-17 |
Family
ID=48768835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200327870U Expired - Fee Related CN203070067U (en) | 2013-01-22 | 2013-01-22 | Parking lot controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203070067U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113570874A (en) * | 2021-09-07 | 2021-10-29 | 深圳市捷顺科技实业股份有限公司 | Parking detection method, device and equipment and vehicle detector |
-
2013
- 2013-01-22 CN CN2013200327870U patent/CN203070067U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113570874A (en) * | 2021-09-07 | 2021-10-29 | 深圳市捷顺科技实业股份有限公司 | Parking detection method, device and equipment and vehicle detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20190122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |