CN102495616B - Intelligent monitor of natural gas transportation vehicle - Google Patents
Intelligent monitor of natural gas transportation vehicle Download PDFInfo
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- CN102495616B CN102495616B CN2011104465127A CN201110446512A CN102495616B CN 102495616 B CN102495616 B CN 102495616B CN 2011104465127 A CN2011104465127 A CN 2011104465127A CN 201110446512 A CN201110446512 A CN 201110446512A CN 102495616 B CN102495616 B CN 102495616B
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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
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- 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]
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Abstract
The invention, which belongs to automatic control technology field, provides an intelligent monitor of a natural gas transportation vehicle. The mainly technology characteristics comprise that: the monitor comprises: a main control board, a plurality of slave control boards, a wireless monitor, a CAN bus; a single chip microcomputer possessing a CAN bus interface is taken as a control core; the main control board and the slave control boards carry out bidirectional signal transmission through the CAN bus; the main control board and the wireless monitor carry out bidirectional data transmission through a data transmission radio station; various kinds of switch quantity signals and analog quantity signals are processed by the single chip microcomputer of the main control board and then generate a control signal and a text signal; an output signal is output through output circuits of the main control board, the slave control boards and the wireless monitor; the text signal is output through liquid crystal screens of the main control board and the wireless monitor. By using the monitor of the invention, real-time intercommunication and monitoring of various kinds of dynamic information of the natural gas in a storage tank can be realized. A structure is simple. Reliability and security are high. Cost is low. The monitor has many other advantages.
Description
Technical field
The present invention relates to a kind of natural gas transportation Vehicular intelligent watch-dog, belong to the automatic control technology field, it is used for the CNG(compressed natural gas), the LNG(liquefied natural gas (LNG)) security monitoring of haulage vehicle and the process control of gas loading and unloading.
Background technology
At present, the CNG(compressed natural gas is mainly adopted in the accumulating of rock gas), the LNG(liquefied natural gas (LNG)) two kinds of forms.Compressed natural gas uses high pressure vessel to fill, and its pressure can reach 20MPa, and liquefied natural gas (LNG) then is rock gas to be cooled to-160 ℃ liquid state fill in low temperature storage tank.Natural gas transportation belongs to high-risk Product transport, in transportation because the temperature that influenced by environmental change can to cause in the storage tank, pressure constantly changes and may be attended by to leak and take place.In the background technology, the control circuit of domestic present natural gas transportation vehicle generally uses the control cable, because of the cable connection complexity, cause dependability lower, thereby directly cause failure rate higher, especially at present the natural gas transportation vehicle all lacks the safety monitoring equipment of transportation basically, and the control circuit of natural gas charging, evacuation procedure also all is to adopt traditional relay or PLC control circuit, does not have special-purpose controller.In order to overcome above deficiency, guarantee the safety of natural gas transportation and gas filling, evacuation procedure, natural gas transportation Vehicular intelligent watch-dog is developed.
Summary of the invention
Technical matters to be solved by this invention is that a kind of natural gas transportation Vehicular intelligent watch-dog will be provided, it adopts the single-chip microcomputer with CAN bus interface to do the control core, adopt the standard CAN bus, realization is carried out real-time intercommunication and monitoring to the various multidate informations of rock gas in the storage tank, it can effectively simplify operation circuit, greatly improve reliability and security, reduce cost.
The technical scheme that the present invention solves its technical matters employing is: it comprises master control board, a plurality of from control panel, wireless monitor, CAN bus,
Described master control board comprises single-chip microcomputer U501, output extended chip group (U301, U302, U303), input extended chip group (U401, U402, U403, U404), AD conversion chip U101, CAN bus interface module U201, power module U801, data radio station P601, LCDs P701, wherein, output extended chip group (U301, U302, U303) comprise three groups of switching value signal output interface (P301, P302, P303), input extended chip group (U401, U402, U403, U404) comprise four groups of switching value signal input interface (P401, P402, P403, P404), the model of master control board single-chip microcomputer U501 is PIC18F4680 or PIC18F4580, the model of AD conversion chip U101 is AD7705, output extended chip group (U301, U302, U303) model of chip is 74HC595, input extended chip group (U401, U402, U403, U404) model of chip is 74HC165
Describedly comprise single-chip microcomputer U501c from control panel, output extended chip group (U30lc, U302c, U303c), input extended chip group (U401c, U402c, U403c, U404c), AD conversion chip U101c, CAN bus interface module U201c, power module U801c, wherein, output extended chip group (U30lc, U302c, U303c) comprise three groups of switching value signal output interface (P301c, P302c, P303c), input extended chip group (U401c, U402c, U403c, U404c) comprise four groups of switching value signal input interface (P401c, P402c, P403c, P404c), compare the deferrization minority platform P601 that conducts electricity with master control board from the circuit structure of control panel, LCDs P701 is outer identical with the circuit structure of master control board, the model of each corresponding ingredient is identical, be PIC18F4680 or PIC18F4580 from the model of control panel single-chip microcomputer U501c, the model of AD conversion chip U101c is AD7705, output extended chip group (U301c, U302c, U303c) model of chip is 74HC595, input extended chip group (U401c, U402c, U403c, U404c) model of chip is 74HC165
Described wireless monitor comprises single-chip microcomputer U1, data radio station P2, LCDs P4,8 input switches (S1～S8), 8 output indicators (DS1～DS8), data radio station P2 is identical with the model of master control board data radio station P601, LCDs P4 is identical with the model of master control board LCDs P701, the model of wireless monitor single-chip microcomputer U1 is PIC18F4680 or PIC18F4580
Described CAN bus connect master control board with from control panel, carry out master control board and from the transmitted in both directions of data between the control panel,
Gather switching value signals such as valve opening and closing signal, door switch signal from the input extended chip group (U401c, U402c, U403c, U404c) of control panel, gather analog signalses such as gas concentration, environment temperature, body oscillating, gas piping pressure from the AD conversion chip U101c of control panel, be input to master control board single-chip microcomputer U501 from switching value signal and the analog signals of control panel collection by the CAN bus interface module U201 in CAN bus and the master control board; The input extended chip group (U401, U402, U403, U404) of master control board and AD conversion chip U101 also gather switching value signal and analog signals respectively and are sent to master control board single-chip microcomputer U501 simultaneously.Simultaneously, the data radio station P601 of master control board receives the switching value signal that is sent by the data radio station P2 on the wireless monitor and reaches master control board single-chip microcomputer U501, and this switching value signal is the signal by 8 input switch S1～S8 of the collection of the single-chip microcomputer U1 on the wireless monitor; Master control board single-chip microcomputer U501 produces corresponding control signal and text signal according to switching value signal and the analog signals of input; Wherein, text signal is under the control of master control board U501, show by master control board LCDs P701, the three group switching value signal output interfaces (P301, P302, P303) of control signal by the output extended chip (U301, U302, U303) of master control board reach a plurality of from control panel via the CAN bus, in control signal under the control of control panel single-chip microcomputer U501c by respectively three groups of switching value signal output interfaces (P301c, P302c, P303c) output of the output extended chip group (U301c, U302c, U303c) from the control panel; Simultaneously, under the control of master control board single-chip microcomputer U501, control signal and text signal also transfer to wireless monitor data radio station P2 by master control board data radio station P601, under the control of wireless monitor single-chip microcomputer U1, text message shows at wireless monitor LCDs P4, and control signal is then controlled on the wireless monitor (the light on and off of DS1～DS8) of 8 output indicators.
The present invention compares the beneficial effect that produces with background technology:
1, owing to adopt the single-chip microcomputer with CAN bus interface to do the control core, adopts the various information of standard CAN bus transfer, can realize the various multidate informations of rock gas in the storage tank are monitored in real time.
2, adopt data radio station to carry out two-way data communication, operating personnel leave in the vehicle certain limit still can implement monitoring to the natural gas transportation vehicle.
3, simple, the reliability of operation circuit and safe, operation and maintenance convenient.
Description of drawings
Fig. 1 is the system block diagram of natural gas transportation Vehicular intelligent watch-dog of the present invention.
Fig. 2 is the circuit structure diagram of master control board 1 among Fig. 1.
Fig. 3 is from the circuit structure diagram of control panel 2 among Fig. 1.
Fig. 4 is the circuit structure diagram of wireless monitor 3 among Fig. 1.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
Referring to accompanying drawing, a kind of natural gas transportation Vehicular intelligent watch-dog, it comprises master control board 1, a plurality of from control panel 2, wireless monitor 3, CAN bus 4.
Comprise single-chip microcomputer U501c from control panel 2, output extended chip group (U301c, U302c, U303c), input extended chip group (U401c, U402c, U403c, U404c), AD conversion chip U101c, CAN bus interface module U201c, power module U801c, wherein, output extended chip group (U301c, U302c, U303c) comprise three groups of switching value signal output interface (P301c, P302c, P303c), input extended chip group (U401c, U402c, U403c, U404c) comprise four groups of switching value signal input interface (P401c, P402c, P403c, P404c), compare with master control board 1 from the circuit structure of control panel 2, the deferrization minority platform P601 that conducts electricity, LCDs P701 is outer identical with the circuit structure of master control board 1, the model of each corresponding ingredient is identical, be PIC18F4680 or PIC18F4580 from the model of control panel 2 single-chip microcomputer U501c, be AD7705 from the model of the AD conversion chip U10lc of control panel 2, output extended chip group (U301c, U302c, U303c) model of chip is 74HC595, input extended chip group (U401c, U402c, U403c, U404c) model of chip is 74HC165, according to the quantity of need monitored object, from no more than 16 of the quantity of control panel 2 (n≤16).
CAN bus 4 connects master control board 1 and from control panel 2, realizes the transmitted in both directions of data.
Gather switching value signals such as valve opening and closing signal, door switch signal from the input extended chip group (U401c, U402c, U403c, U404c) of control panel 2, gather analog signalses such as gas concentration, environment temperature, body oscillating, gas piping pressure from the AD conversion chip U101c of control panel 2, switching value signal and the analog signals gathered from control panel 2 are input to master control board 1 single-chip microcomputer U501 by the CAN bus interface module U201 in CAN bus 4 and the master control board 1; The input extended chip group (U401, U402, U403, U404) of master control board 1 and AD conversion chip U101 also gather switching value signal and analog signals respectively and are sent to master control board 1 single-chip microcomputer U501 simultaneously.Simultaneously, the data radio station P601 of master control board 1 receives the switching value signal that is sent by the data radio station P2 on the wireless monitor 3 and reaches master control board 1 single-chip microcomputer U501, and this switching value signal is the signal by 8 input switch S1～S8 of the collection of the single-chip microcomputer U1 on the wireless monitor 3.
Switching value signal, analog signals are handled the back through master control board 1 single-chip microcomputer U501 and are produced corresponding control signal and text signal.Wherein, text signal is under the control of master control board 1 single-chip microcomputer U501, show by LCDs P701, the three group switching value signal output interfaces (P301, P302, P303) of control signal by the output extended chip (U301, U302, U303) of master control board 1 reach a plurality of from control panel 2 via CAN bus 4, under the control of control panel 2 single-chip microcomputer U501c by respectively three groups of switching value signal output interfaces (P301c, P302c, P303c) output of the output extended chip group (U301c, U302c, U303c) from the control panel 2; Simultaneously, under the control of master control board 1 single-chip microcomputer U501, control signal and text signal also transfer to wireless monitor 3 data radio station P2 by master control board 1 data radio station P601, under the control of wireless monitor 3 single-chip microcomputer U1, text message shows at wireless monitor 3 LCDs P4, and control signal is then controlled on the wireless monitor 3 (the light on and off of DS1～DS8) of 8 output indicators.
Claims (6)
1. natural gas transportation Vehicular intelligent watch-dog, it is characterized in that: it comprises master control board (1), a plurality of from control panel (2), wireless monitor (3), CAN bus (4);
Described master control board (1) comprises single-chip microcomputer U501, output extended chip group (U301, U302, U303), input extended chip group (U401, U402, U403, U404), AD conversion chip U101, CAN bus interface module U201, power module U801, data radio station P601, LCDs P701;
Describedly comprise single-chip microcomputer U501c from control panel (2), output extended chip group (U30lc, U302c, U303c), input extended chip group (U401c, U402c, U403c, U404c), AD conversion chip U101c, CAN bus interface module U201c, power module U801c, the single-chip microcomputer U501c that comprises from control panel (2), output extended chip group (U30lc, U302c, U303c), input extended chip group (U401c, U402c, U403c, U404c), AD conversion chip U101c, CAN bus interface module U201c, the corresponding single-chip microcomputer U501 that comprises with master control board (1) of power module U801c, output extended chip group (U301, U302, U303), input extended chip group (U401, U402, U403, U404), AD conversion chip U101, CAN bus interface module U201, the model of power module U801 is identical;
Described wireless monitor (3) comprises single-chip microcomputer U1, data radio station P2, LCDs P4,8 input switches (S1～S8), 8 output indicators (DS1～DS8);
Gather valve opening and closing signal, door switch signal from the input extended chip group (U401c, U402c, U403c, U404c) of control panel (2), gather gas concentration, environment temperature, body oscillating, gas piping pressure from the AD conversion chip U101c of control panel (2), switching value signal and the analog signals gathered from control panel (2) are input to master control board (1) single-chip microcomputer U501 by the CAN bus interface module U201 in CAN bus (4) and the master control board (1); The input extended chip group (U401, U402, U403, U404) of master control board (1) and AD conversion chip U101 also gather switching value signal and analog signals respectively and are sent to master control board (1) single-chip microcomputer U501 simultaneously; Simultaneously, the data radio station P601 of master control board (1) receives the switching value signal that is sent by the data radio station P2 on the wireless monitor (3) and reaches master control board (1) single-chip microcomputer U501, and this switching value signal is 8 input switches being gathered by the single-chip microcomputer U1 on the wireless monitor (3) (signals of S1～S8);
The switching value signal, analog signals is handled the back through master control board (1) single-chip microcomputer U501 and is produced corresponding control signal and text signal, wherein, text signal shows by LCDs P701 under the control of master control board (1) single-chip microcomputer U501, control signal is by the output extended chip (U301 of master control board (1), U302, U303) three groups of switching value signal output interface (P301, P302, P303) reach via CAN bus (4) a plurality of from control panel (2), under the control of control panel (2) single-chip microcomputer U501c by the output extended chip group (U301c from the control panel (2) respectively, U302c, U303c) three groups of switching value signal output interface (P301c, P302c, P303c) output; Under the control of master control board (1) single-chip microcomputer U501, control signal and text signal also transfer to wireless monitor (3) data radio station P2 by master control board (1) data radio station P601, under the control of wireless monitor (3) single-chip microcomputer U1, text message shows at wireless monitor (3) LCDs P4, and control signal is then controlled (the light on and off of DS1～DS8) of last 8 output indicators of wireless monitor (3).
2. natural gas transportation Vehicular intelligent watch-dog according to claim 1, it is characterized in that: described master control board (1) output extended chip group (U301, U302, U303) comprise three groups of switching value signal output interface (P301, P302, P303), from control panel (2) output extended chip group (U301c, U302c, U303c) comprise three groups of switching value signal output interface (P301c, P302c, P303c), master control board (1) pio chip group (U301, U302, U303) with from control panel (2) pio chip group (U301c, U302c, U303c) model of chip is 74HC595.
3. natural gas transportation Vehicular intelligent watch-dog according to claim 1, it is characterized in that: described master control board (1) input extended chip group (U401, U402, U403, U404) comprise four groups of switching value signal input interface (P401, P402, P403, P404), from control panel (2) input extended chip group (U401c, U402c, U403c, U404c) comprise four groups of switching value signal input interface (P401c, P402c, P403c, P404c), master control board (1) input extended chip group (U401, U402, U403, U404) and from control panel (2) import extended chip group (U401c, U402c, U403c, U404c) model of chip is 74HC165.
4. natural gas transportation Vehicular intelligent watch-dog according to claim 1 is characterized in that: described master control board (1) single-chip microcomputer U501, be PIC18F4680 or PIC18F4580 from the model of control panel (2) single-chip microcomputer U501c and wireless monitor (3) single-chip microcomputer U1.
5. natural gas transportation Vehicular intelligent watch-dog according to claim 1 is characterized in that: described master control board (1) AD conversion chip U101, be AD7705 from the model of control panel (2) AD conversion chip U101c.
6. natural gas transportation Vehicular intelligent watch-dog according to claim 1 is characterized in that: no more than 16 of described quantity from control panel (2).
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| CN2011104465127A CN102495616B (en) | 2011-12-28 | 2011-12-28 | Intelligent monitor of natural gas transportation vehicle |
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| CN102495616B true CN102495616B (en) | 2013-08-28 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104394225A (en) * | 2014-12-02 | 2015-03-04 | 上海雷尼威尔技术有限公司 | System and method for testing remote communication of vehicle LNG gas bottle |
| CN107783475A (en) * | 2017-10-27 | 2018-03-09 | 张家港英孚美芯智能科技有限公司 | LNG industry chain remote monitoring system |
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