The utility model content
The technical problems to be solved in the utility model is: overcome the deficiency that the conventional combination switch exists on control technology, a kind of SP_CAN of utilization network data transmission protocol technology is provided, control by intelligent controller, its switch amount acquisition of signal, the intellectuality of characteristics such as it is fast to have sampling rate, and data transmission rate height and real-time performance are strong, integrated, save rattail, reduce the automobile intelligent combined switch of the band network interface of fault rate.
The technical scheme that its technical matters that solves the utility model adopts is: the automobile intelligent combined switch of this band network interface, comprise intelligent controller, the country beam signal switch, the passing light signal switch, the fog lamp signal switch, critical alarm modulating signal switch, left steering modulating signal switch, right steering modulating signal switch, side-marker lamp's signal switch, windscreen wiper is scraped signal switch at a high speed, windscreen wiper low speed is scraped signal switch, the actuation signal switch, the spray signal switch, the passing lamp signal switch, the audible warning switch, windscreen wiper is intermittently scraped signal switch, CAN_H, the CAN_L network-bus, it is characterized in that: intelligent controller embeds and is installed in the entire combination switch CAN_H, the CAN_L network-bus is by intelligent controller and country beam signal switch, the passing light signal switch, the fog lamp signal switch, critical alarm modulating signal switch, left steering modulating signal switch, right steering modulating signal switch, side-marker lamp's signal switch, windscreen wiper is scraped signal switch at a high speed, windscreen wiper low speed is scraped signal switch, the actuation signal switch, the spray signal switch, the passing lamp signal switch, the audible warning switch, windscreen wiper is intermittently scraped signal switch and is connected.
Intelligent controller comprises microprocessor, protection and memory circuit, CAN datel circuit, signal acquisition circuit, combined switch amount; signal acquisition circuit and microprocessor link; protection and memory circuit and microprocessor are interconnected; CAN datel circuit and microprocessor are interconnected, and the combined switch amount links to each other with microprocessor by signal acquisition circuit.
Intelligent controller external control wiring is two network data transmission connection leads of CAN_H, CAN_L.
Microprocessor is the micro controller system of band CAN controller, is embedded with control coding and Data Transport Protocol.
CAN_H, CAN_L network-bus are followed SP_CAN network-bus Data Transport Protocol.
Functional characteristics such as intelligent controller carries out real-time acquisition controlling to the switching value signal of combined switch, and it is fast that it has sampling rate, and data transmission rate height and real-time performance are strong.
Principle of work
Microprocessor on the intelligent controller is gathered ten four-way switch information of combined switch, information is deferred to the SP_CAN Data Transport Protocol, through sending on the CAN bus behind the coding, carry out data transmission by the CAN bus, after respective microprocessor receives this information, at first decoding, corresponding actr action is controlled in processing execution control corresponding instruction then.Intelligent controller carries out real-time acquisition controlling to the switching value signal of combined switch; it is fast that it has sampling rate; functional characteristics such as data transmission rate height and real-time performance are strong; real-time its on off state is detected simultaneously; have excess current protective function, and, in time correct the on off state of combined switch sending on the CAN bus network behind the testing result coding; to change the action of respective actuators, reach the purpose of real-time control.
Compared with prior art, the characteristics that the utility model had are: microprocessor is gathered the switching information of combined switch, transmit by the CAN bus network, its beneficial effect is: (1) intelligent controller is fixed in combined switch inside with embedded mode, thereby has embodied the intellectuality, integrated of system; (2) utilize SP_CAN network data transmission agreement, the external control data line has only two network connections of CAN_H, CAN_L, thereby has saved rattail greatly, has reduced fault rate; (3) the utility model adopts a milliampere level current control, has excess current protective function, thereby has avoided because of sintering that electric current greatly causes, burn the wire harness phenomenon, has improved the reliability of system, has prolonged the life-span; Functional characteristics such as (4) the utility model carries out real-time acquisition controlling to the switching value signal of combined switch, and it is fast that it has sampling rate, and data transmission rate height and real-time performance are strong.
The specific embodiment
Below in conjunction with accompanying drawing 1-3 the automobile intelligent combined switch of the utility model band network interface is described further:
As shown in Figure 1:
The automobile intelligent combined switch of band network interface, comprise intelligent controller 1, country beam signal switch 2, passing light signal switch 3, fog lamp signal switch 4, critical alarm modulating signal switch 5, left steering modulating signal switch 6, right steering modulating signal switch 7, side-marker lamp's signal switch 8, windscreen wiper is scraped signal switch 9 at a high speed, windscreen wiper low speed is scraped signal switch 10, actuation signal switch 11, spray signal switch 12, passing lamp signal switch 13, audible warning switch 14, windscreen wiper is intermittently scraped signal switch 15, CAN_H, the CAN_L network-bus, it is characterized in that: intelligent controller 1 is to embed in the entire combination switch CAN_H, the CAN_L network-bus is by intelligent controller 1 and country beam signal switch 2, passing light signal switch 3, fog lamp signal switch 4, critical alarm modulating signal switch 5, left steering modulating signal switch 6, right steering modulating signal switch 7, side-marker lamp's signal switch 8, windscreen wiper is scraped signal switch 9 at a high speed, windscreen wiper low speed is scraped signal switch 10, actuation signal switch 11, spray signal switch 12, passing lamp signal switch 13, audible warning switch 14, windscreen wiper is intermittently scraped signal switch 15 and is connected.Intelligent controller 1 is gathered the switching information of combined switch, sends to behind the coding on the CAN bus, transmits by the CAN bus, the corresponding actr action of control after the corresponding intelligent controller 1 reception information.
As shown in Figure 2:
Intelligent controller (1) comprises microprocessor, protection and memory circuit, CAN datel circuit, signal acquisition circuit, combined switch amount; signal acquisition circuit and microprocessor link; protection and memory circuit and microprocessor are interconnected; CAN datel circuit and microprocessor are interconnected, and the combined switch amount links to each other with microprocessor by signal acquisition circuit.Intelligent controller 1 is gathered the switching information of combined switch, sends on the CAN bus network by the CAN datel circuit, utilizes SP_CAN network data transmission agreement, and its information is sent on the corresponding controller.
As shown in Figure 3: form intelligent controller 1 by microprocessor U1 and peripheral circuit thereof, microprocessor is the micro controller system of band CAN controller, is embedded with control coding and Data Transport Protocol, has CAN data communication pin.Send on the CAN bus network behind the switching value information coding of microprocessor U1 collection combined switch.
Protection is formed with store electricity route memory U2, resistance R 1, capacitor C 1,1, the 4 pin ground connection of memory device U2,3 pin connect the VCC high level, 8 pin of memory device U2 connect the VCC high level, and by capacitor C 1 ground connection, 7 pin connect the VCC high level by resistance R 1, and 2 pin, 5 pin, 6 pin, 7 pin link to each other with 3,4,5,50 pin of microprocessor U1 respectively; Microprocessor U1 is realized electrification reset, realize the house dog defencive function, and significant data is stored.
CAN bus data communication circuit is made up of CAN transceiver U3, capacitor C 2, Transient Suppression Diode TVS D1-D2, connector CAN, 8 pin of CAN transceiver U3 connect the VCC high level, 2 pin ground connection, 3 pin connect the VCC high level, and by capacitor C 2 ground connection, 7 pin link to each other with Transient Suppression Diode TVS D1, the D2 of 6 pin by two differential concatenations, and be connected with 1,3 pin of connector CAN, the 2 pin ground connection of connector CAN, 1 pin of CAN transceiver U3 and 4 pin are connected 21,22 pin of microprocessor U1 successively; Realize data communication with microprocessor U1.
Signal acquisition circuit comprises the country beam signal acquisition circuit, the passing light signal acquisition circuit, the fog lamp signal acquisition circuit, critical alarm modulating signal Acquisition Circuit, left steering modulating signal Acquisition Circuit, right steering modulating signal Acquisition Circuit, side-marker lamp's signal acquisition circuit, windscreen wiper is scraped signal acquisition circuit at a high speed, windscreen wiper low speed is scraped signal acquisition circuit, the actuation signal Acquisition Circuit, the spray signal acquisition circuit, the passing lamp signal acquisition circuit, the audible warning Acquisition Circuit, windscreen wiper is intermittently scraped signal acquisition circuit;
The country beam signal acquisition circuit is made up of photoelectrical coupler OP1, country beam signal switch S1 and resistance R 2-R3, and 2 pin of the country beam signal switch S1 of combined switch are connected with 1 pin of photoelectrical coupler OP1,1 pin ground connection, and 3 pin connect the VCC high level; 2 pin of photoelectrical coupler OP1 pass through resistance R 3 ground connection, 3 pin ground connection, and 4 pin connect 85 pin of microprocessor U1, and connect the VCC high level by resistance R 2; Gather the country beam signal switch state of combined switch, and will send on the CAN bus network behind its switching value information coding.
The passing light signal acquisition circuit is made up of photoelectrical coupler OP2, passing light signal switch S2 and resistance R 4-R5, and 2 pin of the passing light signal switch S2 of combined switch are connected with 1 pin of photoelectrical coupler OP2,1 pin ground connection, and 3 pin connect the VCC high level; 2 pin of photoelectrical coupler OP2 pass through resistance R 5 ground connection, 3 pin ground connection, and 4 pin connect 84 pin of microprocessor U1, and connect the VCC high level by resistance R 4; Gather the passing light signal switch state of combined switch, and will send on the CAN bus network behind its switching value information coding.
The fog lamp signal acquisition circuit is made up of photoelectrical coupler OP3, fog lamp signal switch S3 and resistance R 6-R7, and 2 pin of the fog lamp signal switch S3 of combined switch are connected with 1 pin of photoelectrical coupler OP3; 1 pin ground connection, 3 pin connect the VCC high level; 2 pin of photoelectrical coupler OP3 pass through resistance R 7 ground connection, 3 pin ground connection, and 4 pin connect 83 pin of microprocessor U1, and connect the VCC high level by resistance R 6; Gather the fog lamp signal switch state of combined switch, and will send on the CAN bus network behind its switching value information coding.
Critical alarm modulating signal Acquisition Circuit is made up of photoelectrical coupler OP4, critical alarm modulating signal switch S 4 and resistance R 8-R9,2 pin of the critical alarm modulating signal switch S 4 of combined switch are connected with 1 pin of photoelectrical coupler OP4,1 pin ground connection, 3 pin connect the VCC high level; 2 pin of photoelectrical coupler OP4 pass through resistance R 9 ground connection, 3 pin ground connection, and 4 pin connect 82 pin of microprocessor U1, and connect the VCC high level by resistance R 8; Gather the critical alarm modulating signal on off state of combined switch, and will send on the CAN bus network behind its switching value information coding.
Left steering modulating signal Acquisition Circuit is made up of photoelectrical coupler OP5, left steering modulating signal switch S 5 and resistance R 10-R11, and 2 pin of the left steering modulating signal switch S 5 of combined switch are connected with 1 pin of photoelectrical coupler OP5,1 pin ground connection, and 3 pin connect the VCC high level; 2 pin of photoelectrical coupler OP5 pass through resistance R 11 ground connection, 3 pin ground connection, and 4 pin connect 81 pin of microprocessor U1, and connect the VCC high level by resistance R 10; Gather the left steering modulating signal on off state of combined switch, and will send on the CAN bus network behind its switching value information coding.
Right steering modulating signal Acquisition Circuit is made up of photoelectrical coupler OP6, right steering modulating signal switch S 6 and resistance R 12-R13, and 2 pin of the right steering modulating signal switch S 6 of combined switch are connected with 1 pin of photoelectrical coupler OP6,1 pin ground connection, and 3 pin connect the VCC high level; 2 pin of photoelectrical coupler OP6 pass through resistance R 13 ground connection, 3 pin ground connection, and 4 pin connect 80 pin of microprocessor U1, and connect the VCC high level by resistance R 12; Gather the right steering modulating signal on off state of combined switch, and will send on the CAN bus network behind its switching value information coding.
Side-marker lamp's signal acquisition circuit is made up of photoelectrical coupler OP7, side-marker lamp's signal switch S7 and resistance R 14-R15, and 2 pin of side-marker lamp's signal switch S7 of combined switch are connected with 1 pin of photoelectrical coupler OP7,1 pin ground connection, and 3 pin connect the VCC high level; 2 pin of photoelectrical coupler OP7 pass through resistance R 15 ground connection, 3 pin ground connection, and 4 pin connect 79 pin of microprocessor U1, and connect the VCC high level by resistance R 14; Gather side-marker lamp's signal switch state of combined switch, and will send on the CAN bus network behind its switching value information coding.
Windscreen wiper scrapes at a high speed that signal acquisition circuit is scraped signal switch S8 at a high speed by photoelectrical coupler OP8, windscreen wiper and resistance R 16-R17 forms, 2 pin that the windscreen wiper of combined switch is scraped signal switch S8 at a high speed are connected with 1 pin of photoelectrical coupler OP8,1 pin ground connection, 3 pin connect the VCC high level; 2 pin of photoelectrical coupler OP8 pass through resistance R 17 ground connection, 3 pin ground connection, and 4 pin connect 78 pin of microprocessor U1, and connect the VCC high level by resistance R 16; Gather the windscreen wiper of combined switch and scrape the signal switch state at a high speed, and will send on the CAN bus network behind its switching value information coding.
Windscreen wiper low speed scrapes that signal acquisition circuit is scraped signal switch S9 by photoelectrical coupler OP9, windscreen wiper low speed and resistance R 18-R19 forms, 2 pin that the windscreen wiper low speed of combined switch is scraped signal switch S9 are connected with 1 pin of photoelectrical coupler OP9,1 pin ground connection, 3 pin connect the VCC high level; 2 pin of photoelectrical coupler OP9 pass through resistance R 19 ground connection, 3 pin ground connection, and 4 pin connect 93 pin of microprocessor U1, and connect the VCC high level by resistance R 18; Gather the windscreen wiper low speed of combined switch and scrape the signal switch state, and will send on the CAN bus network behind its switching value information coding.
The actuation signal Acquisition Circuit is made up of photoelectrical coupler OP10, actuation signal switch S 10 and resistance R 20-R21, and 2 pin of the actuation signal switch S 10 of combined switch are connected with 1 pin of photoelectrical coupler OP10; 1 pin ground connection, 3 pin connect the VCC high level; 2 pin of photoelectrical coupler OP10 pass through resistance R 21 ground connection, 3 pin ground connection, and 4 pin connect 92 pin of microprocessor U1, and connect the VCC high level by resistance R 20; Gather the actuation signal on off state of combined switch, and will send on the CAN bus network behind its switching value information coding.
The spray signal acquisition circuit is made up of photoelectrical coupler OP11, spray signal switch S11 and resistance R 22-R23, and 2 pin of the spray signal switch S11 of combined switch are connected with 1 pin of photoelectrical coupler OP11; 1 pin ground connection, 3 pin connect the VCC high level; 2 pin of photoelectrical coupler OP11 pass through resistance R 23 ground connection, 3 pin ground connection, and 4 pin connect 91 pin of microprocessor U1, and connect the VCC high level by resistance R 22; Gather the spray signal switch state of combined switch, and will send on the CAN bus network behind its switching value information coding.
The passing lamp signal acquisition circuit is made up of photoelectrical coupler OP12, passing lamp signal switch S12 and resistance R 24-R25, and 2 pin of the passing lamp signal switch S12 of combined switch are connected with 1 pin of photoelectrical coupler OP12; 1 pin ground connection, 3 pin connect the VCC high level; 2 pin of photoelectrical coupler OP12 pass through resistance R 25 ground connection, 3 pin ground connection, and 4 pin connect 90 pin of microprocessor U1, and connect the VCC high level by resistance R 24; Gather the passing lamp signal switch state of combined switch, and will send on the CAN bus network behind its switching value information coding.
The audible warning Acquisition Circuit is made up of photoelectrical coupler OP13, audible warning switch S 13 and resistance R 26-R27, and 2 pin of the audible warning switch S 13 of combined switch are connected with 1 pin of photoelectrical coupler OP13; 1 pin ground connection, 3 pin connect the VCC high level; 2 pin of photoelectrical coupler OP13 pass through resistance R 27 ground connection, 3 pin ground connection, and 4 pin connect 89 pin of microprocessor U1, and connect the VCC high level by resistance R 26; Gather the audible warning on off state of combined switch, and will send on the CAN bus network behind its switching value information coding.
Windscreen wiper scrapes intermittently that signal acquisition circuit is intermittently scraped signal switch S14 by photoelectrical coupler OP14, windscreen wiper and resistance R 28-R29 forms, and 2 pin that the windscreen wiper of combined switch is intermittently scraped signal switch S14 are connected with 1 pin of photoelectrical coupler OP14; 1 pin ground connection, 3 pin connect the VCC high level; 2 pin of photoelectrical coupler OP1 pass through resistance R 29 ground connection, 3 pin ground connection, and 4 pin connect 88 pin of microprocessor U1, and connect the VCC high level by resistance R 28; Gather the windscreen wiper of combined switch and intermittently scrape the signal switch state, and will send on the CAN bus network behind its switching value information coding.
Working process:
Microprocessor U1 on the intelligent controller 1 gathers ten four-way switch information on the combined switch, information is deferred to the SP-CAN Data Transport Protocol, through sending on the CAN bus behind the coding, carry out data transmission by the CAN bus, after respective microprocessor U1 received this information, at first decoding was then according to the ten four-way switch states of gathering, corresponding actr action is controlled in the instruction of processing execution control corresponding.