CN201491333U

CN201491333U - A CAN bus network and wireless network interface connection system

Info

Publication number: CN201491333U
Application number: CN2009201826494U
Authority: CN
Inventors: 隋越
Original assignee: Minjiang University
Current assignee: Minjiang University
Priority date: 2009-08-21
Filing date: 2009-08-21
Publication date: 2010-05-26
Anticipated expiration: 2019-08-21

Abstract

The utility model discloses an interface connection system between a CAN bus network and a wireless network, comprising at least one slave circuit module that receives an LED light work control command and controls the work of the LED light, collects and transmits the collected LED light signals, and a The slave circuit module is connected to at least one main circuit module through a wireless network and sends LED lamp work control commands to the slave circuit module and receives the signal collected by the slave circuit module, and the main circuit module is connected to other master circuit modules through a CAN bus communication. When the utility model is applied to the lighting control of LED lamps, the transmission speed of the CAN bus is fast, and the main circuit module and the slave circuit module transmit signals through wireless transmission, and the main circuit module and the CAN bus transmit signals through wireless transmission. The number of and slave circuit modules can be configured according to needs, and the configuration is relatively flexible; the utility model has strong anti-interference, low bit error rate of transmission signals, wide coverage, high intelligence, and uses solar power without other power sources.

Description

The interface connecting system of a kind of CAN bus network and wireless network

Technical field

The utility model relates to the network interface of a kind of communication or automation field, especially relates to the interface connecting system of a kind of CAN bus network and wireless network.

Background technology

The CAN bus has long transmission distance, reliability height, speed characteristics faster, can a plurality of nodes of control connection on a bus, be mainly used in automotive field at present.

Led light source is as a kind of emerging energy-saving light source, more and more be subject to people's attention, control system to the LED lamp mainly is the Communication Control mode that adopts based on the RS485 physical bus at present, yet the equipment that adopts the RS485 bus sets unique address code must for before using every LED lamp being controlled, and need be provided with one by one every LED lamp usually, operate pretty troublesomely, use so at the scene such as the LED lamp setting on the road and just lack flexibility.And adopt the RS485 bus to control its communication speed of LED lamp and be subjected to LED light fixture number of nodes and the internodal distance affects of LED light fixture, when the quantity that will increase LED light fixture node or prolong LED internodal apart from the time just must guarantee by expansion relays equipment or reduction communication speed.

The utility model content

The technical problem that the utility model mainly solves provides the interface connecting system of a kind of CAN bus network and wireless network, the fast and flexible configuration of control rate when being used for the control of LED lamp.

For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: the interface connecting system that a kind of CAN bus network and wireless network are provided, comprise at least one reception LED lamp work control command and control the work of LED lamp and collection and transmission LED modulating signal from circuit module, one with described from circuit module be connected by wireless network and to described from the circuit module transmitting control commands with receive at least one main circuit module of the described signal of gathering from circuit module, described main circuit module is passed through a CAN bus and other main circuit module communication.

Wherein, described main circuit module comprises a central processing unit, described central processing unit control connection has a main wireless radio frequency modules and a CAN bus driving circuits, stores described CAN bus driving circuits of control and the CAN bus software by wireless connections in the described central processing unit.

Wherein, have the CAN bus transceiver in the described central processing unit, described CAN bus transceiver is connected with described CAN bus by the CAN bus driving circuits under the control of described software.

Wherein, describedly comprise one from the circuit module controller from circuit module, described have a transducer and from wireless radio frequency modules from circuit module controller control connection.

Wherein, described one main wireless radio frequency modules and described at least one from wireless radio frequency modules by wireless connections.

Wherein, described from the external LED lamp of circuit module, temperature, the light information of the light of the described LED lamp of described sensor acquisition and LED lamp surrounding environment.

Wherein, described main circuit module and from circuit module, be equipped with electric power system, described electric power system is a solar cell.

The beneficial effects of the utility model are: the control system that is different from prior art LED lamp mainly is the Communication Control scheme that adopts based on the RS485 physical bus, control rate is slow and lack the situation of flexibility, the interface connecting system of the utility model CAN bus network and wireless network comprise at least one reception LED lamp work control command and control the work of LED lamp and collection and transmission LED modulating signal from circuit module, one with described from circuit module be connected by wireless network and to described from the circuit module transmitting control commands with receive at least one main circuit module of the described signal of gathering from circuit module, described main circuit module is by a CAN bus and other main circuit module communication, the utility model is applied to the light of LED lamp and controls when going up owing to adopt CAN bus transfer speed fast, and described main circuit module and pass through wireless signal transmission from circuit module, pass through wireless signal transmission between main circuit module and the CAN bus, main circuit module and can dispose as required from the number of circuit module disposes more flexible.

The interface connecting system of the utility model CAN bus network and wireless network can form one the longest 10 kilometers, the wideest 1 kilometer the multiple spot control and the zone of data acquisition of surpassing under the open condition, be particularly suitable for controlling certain limit, such as the light control of street lamp, garden lamp, Lawn lamp along the road periphery.

Description of drawings

Fig. 1 is the schematic diagram of the interface connecting system of the utility model CAN bus network and wireless network.

Embodiment

By describing technology contents of the present utility model, structural feature in detail, realized purpose and effect, give explanation below in conjunction with execution mode and conjunction with figs. are detailed.

See also Fig. 1, the interface connecting system of the utility model CAN bus network and wireless network is used to control the light of LED lamp, comprise at least one main circuit module 10 be connected with a main circuit module 10 at least one from circuit module 20.Described at least one main circuit module 10 is connected with a CAN bus 100 by wireless network.

Described from circuit module 20 external LED lamps, receive LED lamp work control commands and control the work of LED lamp and gather the signal of LED lamp and send the LED modulating signal of being gathered from circuit module 20 to described main circuit module 10, described main circuit module 10 is connected by wireless network from circuit module 20 with described, and described main circuit module 10 sends LED lamp work control commands and receives the described signals of being gathered from circuit module 20 from circuit module 20 to described.

Described each main circuit module 10 includes a central processing unit 11, a CAN bus driving circuits 12 and a main wireless radio frequency modules 13.Described central processing unit 11 control connection respectively has described main wireless radio frequency modules 13, CAN bus driving circuits 12.Described central processing unit 11 comprises a CAN bus transceiver, stores the software of writing in the described central processing unit 11, and the CAN bus transceiver of described central processing unit 11 is connected with a CAN bus 100 by CAN bus driving circuits 12 under the control of software.

Described each from circuit module 20 include one from wireless radio frequency modules 21, from a module controller 22 and a transducer 23.Described from the described transducer 23 of module controller 22 difference control connections, from wireless radio frequency modules 21.The main wireless radio frequency modules 13 of described main circuit module 10 under the control of software by wireless communication protocol and a plurality of described forming star-like cordless communication networks and carrying out wireless communication from circuit module 20 from wireless radio frequency modules 21.

Described light and LED lamp temperature on every side of gathering the LED lamp from the described transducer 23 of module controller 22 controls, signals such as light, and control transducer 23 with the signal that collects by being transferred to main circuit module 10 from wireless radio frequency modules 21, the main wireless radio frequency modules 13 of main circuit module 10 receives from wireless radio frequency modules 21 to be transmitted the signal that comes and sends central processing unit 11 to, receive through the CAN of central processing unit 11 bus transceiver, the acquired signal of 11 pairs of receptions of central processing unit carries out sending LED lamp work control command after the analyzing and processing and by radioing to from circuit module 20, from just can controlling the operating state of LED lamp after circuit module 20 receives the control command that main circuit module 10 sends, such as the light intensity of the light of regulating the LED lamp etc.Described CAN bus driving circuits 12 can be transferred to the control command that central processing unit 11 sends CAN bus 100, and CAN bus 100 can be transferred to the control command signal that receives any other main circuit module 10 and communicate with other main circuit module 10.Each main circuit module 10 can be communicated by letter from circuit module 20 with a plurality of by wireless network, and in the practical application, described main circuit module 10 and described number from circuit module 20 can dispose as required, dispose more flexible.

So, the interface connecting system of described whole C AN bus network and wireless network can form one the longest 10 kilometers, the wideest zone that surpasses 1 kilometer multiple spot control and data acquisition under the open condition.In described zone, can carry out the control and the information gathering of multiple spot, be particularly suitable for controlling certain limit, such as the light control of street lamp, garden lamp, Lawn lamp along the road periphery.The interface connecting system of the utility model CAN bus network and wireless network can use solar cell for supplying power and need not other power supply power supply.

The interface connecting system of the utility model CAN bus network and wireless network is used to control the light control of LED street lamp, garden lamp etc., since the CAN compromise annulment station address coding, and replace communication data is encoded, this can make the LED lamp of different nodes can receive identical data message simultaneously, each data between nodes real-time communication of network that these characteristics make the CAN bus constitute is strong, and constitute redundancy structure easily, improve the reliability of system and the flexibility of system.

It is strong that the utility model adopts software to control highly sensitive, anti-electromagnetic interference.

In sum, the interface connecting system of the utility model CAN bus network and wireless network anti-interference strong, the transmission signals error rate is low, wide coverage, degree of intelligence height and flexible configuration.

The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.

Claims

1. the interface connecting system of CAN bus network and wireless network, it is characterized in that, comprise at least one reception LED lamp work control command and control the work of LED lamp and collection and transmission LED modulating signal from circuit module, one with described from circuit module be connected by wireless network and to described from the circuit module transmitting control commands with receive at least one main circuit module of the described signal of gathering from circuit module, described main circuit module is passed through a CAN bus and other main circuit module communication.

2. the interface connecting system of a kind of CAN bus network according to claim 1 and wireless network, it is characterized in that, described main circuit module comprises a central processing unit, described central processing unit control connection has a main wireless radio frequency modules and a CAN bus driving circuits, stores described CAN bus driving circuits of control and the CAN bus software by wireless connections in the described central processing unit.

3. the interface connecting system of a kind of CAN bus network according to claim 2 and wireless network, it is characterized in that, have the CAN bus transceiver in the described central processing unit, described CAN bus transceiver is connected with described CAN bus by the CAN bus driving circuits under the control of described software.

4. the interface connecting system of a kind of CAN bus network according to claim 3 and wireless network, it is characterized in that, describedly comprise one from the circuit module controller from circuit module, described have a transducer and from wireless radio frequency modules from circuit module controller control connection.

5. the interface connecting system of a kind of CAN bus network according to claim 4 and wireless network is characterized in that, described one main wireless radio frequency modules and described at least one from wireless radio frequency modules by wireless connections.

6. the interface connecting system of a kind of CAN bus network according to claim 4 and wireless network is characterized in that, and is described from the external LED lamp of circuit module, temperature, the light information of the light of the described LED lamp of described sensor acquisition and LED lamp surrounding environment.

7. according to the interface connecting system of each described a kind of CAN bus network of claim 1 to 6 and wireless network, it is characterized in that, described main circuit module and from circuit module, be equipped with electric power system, described electric power system is a solar cell.