CN103199958B - Multi signal Intelligent Transportation Systems and transmission method thereof - Google Patents
Multi signal Intelligent Transportation Systems and transmission method thereof Download PDFInfo
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- CN103199958B CN103199958B CN201310078094.XA CN201310078094A CN103199958B CN 103199958 B CN103199958 B CN 103199958B CN 201310078094 A CN201310078094 A CN 201310078094A CN 103199958 B CN103199958 B CN 103199958B
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Abstract
The present invention relates to industry control signal transmission system technical field, particularly relate to a kind of multi signal Intelligent Transportation Systems and transmission method thereof, including execution equipment and computer, it is additionally provided with transmission signal transmission transform coding decoder between execution equipment and the computer of testing ground and receives signal transmission transform coding decoder;Described transmission signal transmission transform coding decoder is arranged at field control cabinet, and described reception signal transmission transform coding decoder is arranged in operation cabinet.It is an advantage of the current invention that, can be by the transmission of integrated for multiclass signal Unified coding and decoded back application, simplify transmission signal, solve connection electric wire and the numerous and diverse line layout confusion problem caused of holding wire, it is to avoid the interference between signal with different type, reduce the strength retrogression in signal transduction process, improve precision and the stability of signal transmission, improve computer disposal efficiency, decrease the response time, save production cost.
Description
Technical field
The present invention relates to industry control signal transmission system technical field, particularly relate to a kind of multi signal Intelligent Transportation Systems and transmission method thereof.
Background technology
The signal transmission system of prior art is widely used in test and control field, and is a requisite ingredient.These signal types have: low and high level, such as: 5V knob position and state, 12V knob position and state, 24V knob position and state, 24V status indicator lamp etc.;Control to export, such as: 0~5V, 0~10V, ± 5V, ± 10V, 4~20mA etc.;Gather and sensor signal, such as: 4~20mA, ± 1V, ± 5V, 0~10V, ± 10V etc..It is substantially in the prior art and uses a signal by the way of the tradition of one or more line directly transmission of line signal, the most not only connection electric wire is many and holding wire type is the most numerous and diverse, identification and management to field wiring make troubles, the most usually may be different because of signal type, interfere between signal and signal when causing transmitting, reduce signal transmission strength, thus affect precision and the stability of signal transmission, the data ultimately resulting in acquisition are inaccurate, affect being normally carried out of production activity.If additionally, need to connect up longer from operation room to testing ground, some signals there may be decay, thus has influence on whole system;And more signal transmssion line uses, it is unfavorable for the saving of environmental protection and cost.The most how to simplify signal transmission, the reliability in enhancing signal transmitting procedure, reduce production cost simultaneously, be then that prior art has problem to be solved.To this applicant because the disappearance of prior art and inconvenience, the spirit adhere to research and innovation, keeping on improving, utilize its specialty eye and Professional knowledge, work out a kind of multi signal Intelligent Transportation Systems.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, and when a kind of multi signal transmission is provided, had both simplified transmission line, and improved again transmission reliability, the most economic and environment-friendly multi signal Intelligent Transportation Systems and transmission method thereof.
The present invention is achieved through the following technical solutions, and is additionally provided with transmission signal transmission transform coding decoder and receives signal transmission transform coding decoder between execution equipment and computer;Described transmission signal transmission transform coding decoder is arranged at field control cabinet, and described reception signal transmission transform coding decoder is arranged in operation cabinet;
Comprise the following steps:
(1) computer that is arranged in the operation room main control end as whole system is included, by operation switch, button, knob, given output potentiometer and computer software cashier's office in a shop, control signal and data read command are sent and delivers to receive signal transmission transform coding decoder;Test specimen two ends are connected on the execution equipment that sensor, motor and blower fan are constituted, by rotating speed, moment of torsion, temperature data and motor and the rotating speed of blower fan, temperature, the voltage signal of each sensor measurement test specimen, and signal is accessed the transmission signal transmission transform coding decoder of field control cabinet;
(2) receive signal transmission transform coding decoder by control signal and data read command by encoding procedure be converted into data that communication protocol arranged again by 485 232 or CAN communication be transferred to the transmission signal of trial zone, scene and transmit transform coding decoder;
(3) send signal transmission transform coding decoder and be reduced into each control instruction and data read command by receiving the data transmitted by decoding program parsing, be sent to each signal receiving device in testing ground;
(4) the feedback states signal of each signal receiving device in testing ground sends the transmission signal transmission transform coding decoder to on-the-spot trial zone;
(5) by encoding procedure be numbered again by 485 232 or CAN communication be transferred to operation room reception signal transmission transform coding decoder;
(6) receiving signal transmission transform coding decoder becomes original signal to be sent to show the reception equipment such as instrument, state display lamp, computer the data convert received by program decoding.
Send signal transmission transform coding decoder and be embedded IC plate structure with reception signal transmission transform coding decoder.
It is an advantage of the current invention that, can be by the transmission of integrated for multiclass signal Unified coding and decoded back application, simplify transmission signal, solve connection electric wire and the numerous and diverse line layout confusion problem caused of holding wire, it is to avoid the interference between signal with different type, reduce the strength retrogression in signal transduction process, improve precision and the stability of signal transmission, improve computer disposal efficiency, decrease the response time, save production cost.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of multi signal Intelligent Transportation Systems structure.
Fig. 2 is the flow chart of multi signal Intelligent Transportation Systems transmitting procedure.
Fig. 3 is multi signal Intelligent Transportation Systems specific embodiment schematic diagram.
Wherein: 1, operation cabinet;11. receive signal transmission transform coding decoder;12. viewing areas;13. control zones;2. field control cabinet;21. send signal transmission transform coding decoder;3. computer;4. perform equipment;41. sensors;42. motors;43, blower fan;5. test specimen.
Detailed description of the invention
Optimal way for the present invention is described further below in conjunction with the accompanying drawings, as shown in Figures 1 to 3, including execution equipment 4 and computer 3, it is additionally provided with transmission signal transmission transform coding decoder 21 between execution equipment 4 and the computer 3 of testing ground and receives signal transmission transform coding decoder 11;Described transmission signal transmission transform coding decoder 21 is arranged at field control cabinet 2, and described reception signal transmission transform coding decoder 11 is arranged in operation cabinet 1.
Send signal transmission transform coding decoder 21 and be embedded IC plate structure with reception signal transmission transform coding decoder 11.
Multi signal Intelligent Transportation Systems transmission method comprises the following steps:
(1) computer that is arranged in the operation room main control end as whole system is included, by operation switch, button, knob, given output potentiometer and computer software cashier's office in a shop, control signal and data read command are sent and delivers to receive signal transmission transform coding decoder;Test specimen two ends are connected on the execution equipment that sensor, motor and blower fan are constituted, by rotating speed, moment of torsion, temperature data and motor and the rotating speed of blower fan, temperature, the voltage signal of each sensor measurement test specimen, and signal is accessed the transmission signal transmission transform coding decoder of field control cabinet;
(2) receive signal transmission transform coding decoder by control signal and data read command by encoding procedure be converted into data that communication protocol arranged again by 485 232 or CAN communication be transferred to the transmission signal of trial zone, scene and transmit transform coding decoder;
(3) send signal transmission transform coding decoder and be reduced into each control instruction and data read command by receiving the data transmitted by decoding program parsing, be sent to each signal receiving device in testing ground;
(4) the feedback states signal of each signal receiving device in testing ground sends the transmission signal transmission transform coding decoder to on-the-spot trial zone;
(5) by encoding procedure be numbered again by 485 232 or CAN communication be transferred to operation room reception signal transmission transform coding decoder;
(6) receiving signal transmission transform coding decoder becomes original signal to be sent to show the reception equipment such as instrument, state display lamp, computer the data convert received by program decoding.
Data after described coding are by 485 lines or 232 lines or CAN line communication transfer.
The operation cabinet 1 connecting computer 3 is generally positioned at independent operation room, and testing ground then includes the apparatus for transmitting signal such as each execution equipment 1, sensor 41, execute-in-place cabinet 2 and sends signal transmission transform coding decoder 21,485 or 232 or CAN communication circuit.Wherein, the operation cabinet 1 of operation room also includes the viewing area 12 of the composition such as signal receiver table, state display lamp, computer 3(data collecting card, I/O card etc.), and signal send computer (I/O card, DA card etc.), switch, button, knob, give control zones 13 such as exporting potentiometer;Testing ground includes the operating state signal etc. that each sensor 41, location switch, proximity switch, button and the converter that send signal and some intelligent control device send;Signal receiving device is such as: converter, relay, PLC, servo controller, AMT etc.;Terminal performs equipment such as: motor 42, blower fan 43, valve, pump, attemperating unit etc..
Signal transmission transform coding decoder function includes: coding, and each control signal and each sensor signal and each status signal are carried out coding by program and retransmited;The data received are decoded into the control signal needed for each reception device by program or gather signal by decoding;485 or 232 or CAN communication circuit be mode and the circuit of data transmission between two signals transmission transform coding decoders.
The operation cabinet 1 (comprising computer 3) of operation room is as the main control end of whole system, by the switch on operation cabinet 1, button, knob, given output potentiometer and computer software, control signal and data read command are sent and delivers to receive signal transmission transform coding decoder 11.Receive signal transmission transform coding decoder 11 by these signals and data read command by encoding procedure be converted into data that communication protocol arranged again by 485 232 or CAN communication be transferred to the transmission signal of trial zone, scene and transmit transform coding decoder 21.
Send signal transmission transform coding decoder 21 and be reduced into each control instruction and data read command by receiving the data transmitted by decoding program parsing, be sent to each signal receiving device in testing ground.The signal of each sensor in testing ground 41 and test and test relevant device feedback states signal send the transmission signal transmission transform coding decoder 21 to on-the-spot trial zone, by encoding procedure be numbered again by 485 232 or CAN communication be transferred to the reception signal transmission transform coding decoder 11 of operation room, receive signal transmission transform coding decoder 11 and become original signal to be sent to show the reception equipment such as instrument, state display lamp, computer 3 data convert received by program decoding.
Below in conjunction with specific embodiment, the invention will be further described, test specimen 5 is installed on execution equipment 4, test specimen 5 two ends connect sensor 41, motor 42 and blower fan 43 respectively, the various data signals such as the data such as the rotating speed of test specimen 5, moment of torsion, temperature and motor and the rotating speed of blower fan, temperature, voltage are measured by each sensor 41, and the transmission signal that signal accesses field control cabinet 2 transmits transform coding decoder 21, encode unified in sending signal transmission transform coding decoder 21 for each detection signal;Data after coding are passed through communication transfer;Data are decoded in being transferred to the reception signal transmission transform coding decoder 11 of operation cabinet 1;Decoded each detection signal is sent to each control or sampling terminal by line, completes signals transmission.Computer 3 receives signal and feedback control instructs to execution equipment 4.
Embodiment described above only have expressed one embodiment of the present invention, and it describes more concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (2)
1. multi signal Intelligent Transportation Systems, including execution equipment and computer, it is characterised in that: it is additionally provided with transmission signal transmission transform coding decoder between execution equipment and computer and receives signal transmission transform coding decoder;Described transmission signal transmission transform coding decoder is arranged at field control cabinet, and described reception signal transmission transform coding decoder is arranged in operation cabinet;
Comprise the following steps:
(1) computer that is arranged in the operation room main control end as whole system is included, by operation switch, button, knob, given output potentiometer and computer software cashier's office in a shop, control signal and data read command are sent and delivers to receive signal transmission transform coding decoder;Test specimen two ends are connected on the execution equipment that sensor, motor and blower fan are constituted, by rotating speed, moment of torsion, temperature data and motor and the rotating speed of blower fan, temperature, the voltage signal of each sensor measurement test specimen, and signal is accessed the transmission signal transmission transform coding decoder of field control cabinet;
(2) receive signal transmission transform coding decoder by control signal and data read command by encoding procedure be converted into data that communication protocol arranged again by 485 232 or CAN communication be transferred to the transmission signal of trial zone, scene and transmit transform coding decoder;
(3) send signal transmission transform coding decoder and be reduced into each control instruction and data read command by receiving the data transmitted by decoding program parsing, be sent to each signal receiving device in testing ground;
(4) the feedback states signal of each signal receiving device in testing ground sends the transmission signal transmission transform coding decoder to on-the-spot trial zone;
(5) by encoding procedure be numbered again by 485 232 or CAN communication be transferred to operation room reception signal transmission transform coding decoder;
(6) receiving signal transmission transform coding decoder becomes original signal to be sent to show the reception equipment such as instrument, state display lamp, computer the data convert received by program decoding.
Multi signal Intelligent Transportation Systems the most according to claim 1, it is characterised in that: send signal transmission transform coding decoder and be embedded IC plate structure with reception signal transmission transform coding decoder.
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CN104375496B (en) * | 2014-12-08 | 2018-01-05 | 中国石油天然气集团公司 | Dcs and its control method |
CN108833121A (en) * | 2018-05-08 | 2018-11-16 | 淄博职业学院 | A kind of Transmission system and its application method improving data transfer of computer stability |
CN111026077A (en) * | 2019-11-28 | 2020-04-17 | 四川九洲空管科技有限责任公司 | Automatic test bench of response system based on GPIB bus and test method thereof |
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US8510638B2 (en) * | 2000-01-14 | 2013-08-13 | Infineon Technologies Ag | Coding method for coding control commands for actuators |
CN2896258Y (en) * | 2006-02-21 | 2007-05-02 | 天津博尔泰科技有限公司 | Electric dynamometer system |
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