CN201159902Y - Apparatus for recognizing and reading gas vehicle gas cylinder information without opening cap - Google Patents
Apparatus for recognizing and reading gas vehicle gas cylinder information without opening cap Download PDFInfo
- Publication number
- CN201159902Y CN201159902Y CNU200820097744XU CN200820097744U CN201159902Y CN 201159902 Y CN201159902 Y CN 201159902Y CN U200820097744X U CNU200820097744X U CN U200820097744XU CN 200820097744 U CN200820097744 U CN 200820097744U CN 201159902 Y CN201159902 Y CN 201159902Y
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- gas cylinder
- electric capacity
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Abstract
The utility model discloses a device for identifying and reading the gas bottle information of a flue gas vehicle through radio frequency without opening a vehicle cover, which comprises a reader and an electronic tag, wherein, the electronic tag consists of an ID chip and a processor, an antenna is arranged on the processor and the reader respectively, and the electronic tag and the reader implement the data transmission based on the radio frequency technique, and the device is characterized in that: the ID chip is affixed on a gas bottle body of the flue gas vehicle, the processor is fixed on a rear cover of the flue gas vehicle, and the processor is connected with the ID chip by a lead. The device can read the information of the gas bottle without opening the rear cover of the flue gas vehicle based on the radio frequency technique, and can maximally reduce waste and costs by only replacing the original chip by a cheaper ID chip and retaining the processor when changing the gas bottle.
Description
Technical field
The utility model belongs to the information monitoring field, specifically, relates to and does not a kind ofly drive to cover radio-frequency (RF) identification and read combustion gas car gas cylinder massaging device.
Background technology
At present, Minister of the General Administration for Quality Supervision normally checks gas cylinder information when the aerating of combustion gas car after CNG, LPG combustion gas car gas cylinder are carried out annual test, open combustion gas car bonnet by the testing staff, checks the nameplate on the gas cylinder, checks the annual test conformity certification of this gas cylinder.This detection can only be carried out after bonnet is opened in the parking of combustion gas car, and not only efficient is not high, and makes mistakes easily, and therefore, some also utilizes radio-frequency (RF) identification to read gas cylinder information.
Radio-frequency (RF) identification (Radio Frequency Idenfication is called for short RFID) is to utilize radiotelegraphy to set up communication between reader and electronic tag, reaches a kind of technology of information inquiry purpose.Described electronic tag is formed by ID chip and processor sets, on this processor antenna is installed.The RFID electronic tag can be divided into two classes: passive RFID electronic label and active RFID electronic label.The electromagnetic wave that the reader that charged pool not on the passive RFID electronic label, the needed whole power supplys of its work all rely on conversion to receive sends obtains, thereby its emission power of reader is bigger; The active RFID electronic label self possesses battery, and the power supply of whole device work can be provided, thereby its emission power of reader is less demanding, and the effective reading distance also increases to some extent than the former.Current, when utilizing radio-frequency (RF) identification to read gas cylinder information, employing be the passive RFID mode.Reader is installed in each check point, and as porch of each gas station etc., electronic tag is attached on the body of gas cylinder, contains the information of this gas cylinder at the ID of this electronic tag chip internal memory, and this information is corresponding one by one with gas cylinder, no duplicate message.In case this electronic tag unloads, this ID chip promptly damages.When the combustion gas car entered the reader perform region, reader sent radiofrequency signal, the excited electrons label, and electronic tag sends the gas cylinder information of ID chip-stored to reader by radiofrequency signal.
Because combustion gas car bonnet is made of metal, the passive RFID signal will conductively-closed, and electronic tag can not receive the pumping signal that reader sends, gas cylinder information can not be sent to reader, have only bonnet is opened, just can finish reading of gas cylinder information, operate cumbersome.And employing passive RFID mode, paste an electronic tag on each gas cylinder, can cause ID chip wherein to damage owing to unload electronic tag, therefore each electronic tag can not be reused, when changing gas cylinder, need stick new electronic tag, the combustion gas car of a plurality of gas cylinders particularly is installed for needs, need higher cost.
The defective of prior art is: when utilizing passive RFID to read gas cylinder information, need open combustion gas car bonnet and just can carry out, and electronic tag is corresponding one by one with gas cylinder, electronic tag can not be reused, cause when changing gas cylinder, waste greatlyyer, the cost of needs is also higher.
The utility model content
The purpose of this utility model provides a kind ofly not to be driven to cover radio-frequency (RF) identification and reads combustion gas car gas cylinder massaging device, can be under the situation that need not open combustion gas car bonnet, read gas cylinder information by radio-frequency technique, and when changing gas cylinder, only need to change cheap ID chip, need not change processor, can farthest reduce waste, reduce cost.
For achieving the above object, the utility model statement is a kind of does not drive to cover radio-frequency (RF) identification and reads combustion gas car gas cylinder massaging device, comprise reader and electronic tag, wherein electronic tag is made up of ID chip and processor, antenna all is installed on this processor and reader, described electronic tag and reader carry out data transmission by radio-frequency technique, its key is: described ID chip is attached on the combustion gas car gas cylinder body, described processor is fixed on the combustion gas car bonnet, and this processor is connected by lead with described ID chip.
Described antenna determines described reader perform region scope.Described ID chip internal memory contains the information of corresponding gas cylinder, and this gas cylinder information is made up of gas cylinder numbering and encryption numbers two parts, and the gas cylinder numbering is corresponding one by one with gas cylinder, after each annual test, changes its encryption numbers by described reader.
Described ID chip separates placement with processor, and both connect with lead, when changing gas cylinder, only needs to change cheap ID chip, and does not need to change processor, has reduced cost.Described antenna is responsible for receiving the pumping signal that described reader sends, and simultaneously also gas cylinder information is sent to this reader, i.e. RFID signal, and this antenna places on the combustion gas car bonnet, need not open this bonnet, just can avoid the conductively-closed of RFID signal.
Behind the described processor plastic packaging, be adsorbed on the described combustion gas car bonnet by sucker, the lead that this processor connects passes this combustion gas car bodywork gap and extend in the car, is connected with described ID chip.
Described bodywork gap refers to the slit of described combustion gas car bonnet and vehicle rear window junction.Plastic packaging can guarantee this processor waterproof, and described sucker can guarantee that this processor fixedly secures on this combustion gas car bonnet.
The feed circuit of described electronic tag are made up of battery, inductance, first electric capacity, triode, first resistance, the 3rd resistance, stabilivolt; The positive pole output positive supply of described battery, this battery cathode ground connection, after described inductance is connected in series first resistance, be connected in parallel on the two ends of described first electric capacity, the minus earth of this first electric capacity, the positive pole of described first electric capacity connects the base stage of described triode, and the collector of this triode connects described positive supply, the emitter of described triode is connected in series ground connection behind described the 3rd resistance, and this emitter also connects the input end V of described voltage stabilizer
IN, the output terminal V of this voltage stabilizer
OUTOutput voltage stabilizing electricity is given described electronic tag, the ground end ground connection of described voltage stabilizer.
When the combustion gas car enters described reader perform region, this reader sends radiofrequency signal, encourage described inductance, this inductive coupling, produce faint alternating current, and to described first electric capacity charging, after this first electric capacity charging is finished, described transistor base is in high level, and this triode conducting provides trigger voltage to described controllable silicon, this controllable silicon conducting, described battery is connected in the circuit, and after the DC voltage voltage stabilizing of described voltage stabilizer to this battery output, output voltage stabilizing electricity is given described electronic tag power supply.When the combustion gas car rolled this reader perform region away from, described inductance stopped coupling, described triode by, described controllable silicon by, described battery quits work.Because of described electronic tag internal cell energy consumption seldom, thereby battery can be kept several years.
The working power of described electronic tag also can directly be supplied with by described combustion gas car by revising combustion gas car circuit.
Described electronic tag is provided with at least one ID chip, connects by bus between each ID chip, and the output terminal of described each ID chip also connects the described processor of back connection.When needing a plurality of gas cylinder is installed in the combustion gas car, all post the ID chip on each gas cylinder, adopt bus to connect between each ID chip.At this moment, the corresponding a plurality of ID chips of processor can effectively be saved cost on the electronic tag.
Described processor is by first single-chip microcomputer, the one RF transmitter module, the one RF receiver module is formed, the output terminal P3.2 output data information of described first single-chip microcomputer is given the input end of a described RF transmitter module, the output terminal of the one RF transmitter module connects described antenna, outwards launch described data message, the input end P3.4 of described first single-chip microcomputer receives the pumping signal of the output terminal output of a described RF receiver module, the input end of the one RF receiver module connects described antenna, receive described pumping signal, the signal of described first single-chip microcomputer obtains end P0.1 and is connected with described ID chip, reads described gas cylinder information.
A described RF receiver module receives the pumping signal that described reader sends, and described processor reads the gas cylinder information of ID chip-stored, and by a described RF transmitter module this gas cylinder information is sent to described reader.
Described first single-chip microcomputer also is connected with first reset circuit, described first reset circuit is made up of first reset switch, second electric capacity, the 5th resistance, the 6th resistance, the positive pole of described second electric capacity connects power supply, the negative pole of this second electric capacity is through described the 6th resistance eutral grounding, one termination power of described first reset switch, after the other end is connected in series described the 5th resistance, be connected with the negative pole of described second electric capacity, the negative pole of this second electric capacity is connected with the RESET end of described first single-chip microcomputer.
It is in order to prevent that situations such as deadlock from appearring in described processor that described first reset switch is set.
Described reader is by second singlechip, the 2nd RF transmitter module, the 2nd RF receiver module and bus chip are formed, the output terminal P3.2 output drive signal of described second singlechip is given the input end of described the 2nd RF transmitter module, the output terminal of the 2nd RF transmitter module connects described antenna, outwards launch this pumping signal, the input end P3.4 of described second singlechip receives the data message of the output terminal output of described the 2nd RF receiver module, the input end of the 2nd RF receiver module connects described antenna, receive described data message, the TXD of described second singlechip, the RXD end connects the T1-IN of described bus chip respectively, the R1-OUT end, the R2-IN of this bus chip, T1-OUT, the R1-IN end is connected with extraneous.
Described bus chip can connect main frame etc., described the 2nd RF transmitter module sends excitation information to the electronic tag that enters described reader perform region, the 2nd RF receiver module receives the gas cylinder information that this electronic tag sends, and by described bus chip, sends this gas cylinder information to main frame.
Described second singlechip also is connected with second reset circuit, described second reset circuit by second reset switch, the 3rd electric capacity, the 8th resistance, the 9th resistance, form, the positive pole of described the 3rd electric capacity connects power supply, the negative pole of the 3rd electric capacity is through described the 9th resistance eutral grounding, one termination power of described first reset switch, after the other end is connected in series described the 8th resistance, be connected with the negative pole of described the 3rd electric capacity, the negative pole of the 3rd electric capacity is connected with the RESET of described second singlechip end.
Described second reset switch can prevent that the deadlock state from appearring in this reader.
Remarkable result of the present utility model is: provide a kind of and do not drive to cover radio-frequency (RF) identification and read combustion gas car gas cylinder massaging device, can be under the situation that need not open combustion gas car bonnet, read gas cylinder information by radio-frequency technique, this scheme is separated the processor in the electronic tag with the ID chip, a processor can connect a plurality of ID chips, when changing gas cylinder, only need change the ID chip gets final product, can farthest reduce waste, reduce cost, and the electronic tag circuit be self-powered, do not need reader to have very big emissive power, and effective reading distance also can increase, and also all is provided with reset switch on reader and processor, prevents the generation of situations such as crashing.Simultaneously, to the method that gas cylinder information adopts numbering to combine with encryption numbers, can guarantee data security.The effective decipherment distance of reader can reach 10-200m in the utility model, and can obtain the gas cylinder information more than 50 p.s. simultaneously, and the highest recognition speed can reach 100 kilometers/hour, and adopts the open ISM band in the whole world, need not apply for and pay, and is with low cost.
Description of drawings
Fig. 1 is the structural representation of embodiment 1;
Fig. 2 is embodiment 1 electronic tag and gas cylinder connection diagram;
Fig. 3 is an electronic tag power supply circuit construction synoptic diagram;
Fig. 4 is the processor circuit structure synoptic diagram;
Fig. 5 is the reader circuitry structural drawing;
Fig. 6 is the structural representation of embodiment 2;
Fig. 7 is electronic tag and a gas cylinder connection diagram among the embodiment 2;
Fig. 8 is the ID chip connecting circuit figure of embodiment 2.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Embodiment 1:
As shown in Figure 1, 2: a kind ofly do not drive to cover radio-frequency (RF) identification and read combustion gas car gas cylinder massaging device, comprise reader 1 and electronic tag 2, wherein electronic tag 2 is made up of ID chip 3 and processor 4, on this processor 4 and reader 1, antenna 5 is installed all, described electronic tag 2 carries out data transmission with reader 1 by radio-frequency technique, described ID chip 3 is attached on combustion gas car gas cylinder 6 bodies, described processor 4 is fixed on the combustion gas car vehicle body 7, and this processor 4 is connected by lead 8 with described ID chip 3.
Behind described processor 4 plastic packagings, be adsorbed on the described combustion gas car bonnet 7 by sucker 9, the lead 8 that this processor 4 connects passes this combustion gas car bodywork gap and extend in the car, is connected with described ID chip 3.
As shown in Figure 3: the feed circuit of described electronic tag 2 are made up of battery B, inductance L, the first capacitor C p, triode T, first resistance R 1, the 3rd resistance R 3, stabilivolt W; The positive pole output positive supply of described battery B, this battery B minus earth, after described inductance L is connected in series first resistance R 1, be connected in parallel on the two ends of the described first capacitor C p, the minus earth of this first capacitor C p, the positive pole of the described first capacitor C p connects the base stage of described triode T, and the collector of this triode T connects described positive supply, the emitter of described triode T is connected in series described the 3rd resistance R 3 back ground connection, and this emitter also connects the input end V of described voltage stabilizer W
IN, the output terminal V of this voltage stabilizer W
OUTOutput voltage stabilizing electricity is given described electronic tag 2, the ground end ground connection of described voltage stabilizer W.
As shown in Figure 4: described processor 4 is by the first single-chip microcomputer U1, the one RF transmitter module RFS, the one RF receiver module RFR forms, the output terminal P3.2 output data information of the described first single-chip microcomputer U1 is given the input end of a described RF transmitter module RFS, the output terminal of the one RF transmitter module RFS connects described antenna 5, outwards launch described data message, the input end P3.4 of the described first single-chip microcomputer U1 receives the pumping signal of the output terminal output of a described RF receiver module RFR, the input end of the one RF receiver module RFR connects described antenna 5, receive described pumping signal, the signal of the described first single-chip microcomputer U1 obtains end P0.1 and is connected with described ID chip 3, reads described gas cylinder 6 information.
The described first single-chip microcomputer U1 also is connected with first reset circuit, described first reset circuit is made up of the first reset switch RESET, second capacitor C 1, the 5th resistance R 5, the 6th resistance R 6, the positive pole of described second capacitor C 1 connects power supply, the negative pole of this second capacitor C 1 is through described the 6th resistance R 6 ground connection, the termination power of the described first reset switch RESET, after the other end is connected in series described the 5th resistance R 5, be connected with the negative pole of described second capacitor C 1, the negative pole of this second capacitor C 1 is connected with the RESET end of the described first single-chip microcomputer U1.
As shown in Figure 5: described reader 1 is by second singlechip U1 ', the 2nd RF transmitter module RFS ', the 2nd RF receiver module RFR ' and bus chip UZ form, the output terminal P3.2 output drive signal of described second singlechip U1 ' is given the input end of described the 2nd RF transmitter module RFS ', the output terminal of the 2nd RF transmitter module RFS ' connects described antenna 5, outwards launch this pumping signal, the input end P3.4 of described second singlechip U1 ' receives the data message of the output terminal output of described the 2nd RF receiver module RFR ', the input end of the 2nd RF receiver module RFR ' connects described antenna 5, receive described data message, the TXD of described second singlechip U1 ', the RXD end connects the T1-IN of described bus chip UZ respectively, the R1-OUT end, the R2-IN of this bus chip UZ, T1-OUT, the R1-IN end is connected with extraneous.
Described second singlechip U1 ' also is connected with second reset circuit, described second reset circuit is by the second reset switch RESET ', the 3rd capacitor C 1 ', the 8th resistance R 5 ', the 9th resistance R 6 ', form, the positive pole of described the 3rd capacitor C 1 ' connects power supply, the negative pole of the 3rd capacitor C 1 ' is through described the 9th resistance R 6 ' ground connection, the termination power of the described first reset switch RESET, after the other end is connected in series described the 8th resistance R 5 ', be connected with the negative pole of described the 3rd capacitor C 1 ', the negative pole of the 3rd capacitor C 1 ' is connected with the RESET end of described second singlechip U1 '.
Described stabilivolt W model is 7805, and described first single-chip microcomputer U1 and second singlechip U1 ' select same model chip 89C51 for use, and described bus chip UZ model is MAX232, and the model of described ID chip 3 is BS2432.Described reader 1 is installed in each check point, porch as each gas station, the perform region scope of described antenna 5 these readers 1 of decision, effective decipherment distance of this reader 1 can reach 10-200m, the highest recognition speed can reach 100 kilometers/hour, and the band limits of this radiofrequency signal is chosen the HFS of the open ISM band in the whole world.
The information of the corresponding gas cylinder 6 of described ID chip 3 stored, this information is made up of numbering and encryption numbers two parts, and described gas cylinder 6 numberings are corresponding one by one with this gas cylinder 9.
Its principle of work is as follows: when the combustion gas car enters described reader 1 perform region, described reader 1 sends pumping signal by the electronic tag 2 of described the 2nd RF transmitter module RFS ' on this combustion gas car gas cylinder, RF receiver module RFR on the described processor 4 receives this pumping signal, inductance L on described electronic tag 2 feed circuit is subjected to encouraging the back coupling, produce faint alternating current, and to described first capacitor C p charging, after this first capacitor C p charging is finished, described triode T base stage is in high level, this triode T conducting, provide trigger voltage to described controllable silicon SCR, this controllable silicon SCR conducting, described battery B is connected in the circuit, and after the DC voltage voltage stabilizing of described voltage stabilizer W to this battery B output, output voltage stabilizing electricity is given described electronic tag 2 power supplies.The processor 4 of this electronic tag 2 obtains gas cylinder 6 information of the storage of described ID chip 3, and these gas cylinder 6 information are sent to described reader 1 by a described RF transmitter module RFS, the 2nd RF receiver module RFR ' on this reader 1 receives this information, and, send this information to the external world by described bus chip UZ.
When the combustion gas car rolls this reader perform region away from, described reader 1 sends pumping signal by the electronic tag 2 that described the 2nd RF transmitter module RFS ' stops on this combustion gas car gas cylinder, described inductance L stops coupling, described triode T by, described controllable silicon SCR by, described battery B stops power supply.
It is in order to prevent that situations such as deadlock from appearring in described processor and reader that the described first reset switch RESET and the second reset switch RESET ' are set.
Embodiment 2:
Present embodiment and embodiment 1 structure are roughly the same, its difference is: shown in Fig. 6,7,8: as described in electronic tag 2 be provided with at least one ID chip 3, connect by bus between each ID chip 3, the output terminal of described each ID chip 3 also connects the described processor 4 of back connection.
Its principle of work and embodiment 1 principle of work are roughly the same, and its difference is: described processor obtains gas cylinder 6 information of described each ID chip 3 storages successively by the order of setting.
Claims (8)
1, a kind ofly do not drive to cover radio-frequency (RF) identification and read combustion gas car gas cylinder massaging device, comprise reader (1) and electronic tag (2), wherein electronic tag (2) is made up of ID chip (3) and processor (4), on this processor (4) and reader (1), antenna (5) is installed all, described electronic tag (2) carries out data transmission with reader (1) by radio-frequency technique, it is characterized in that: described ID chip (3) is attached on combustion gas car gas cylinder (6) body, described processor (4) is fixed on the combustion gas car bonnet (7), and this processor (4) is connected by lead (8) with described ID chip (3).
2, do not drive to cover radio-frequency (RF) identification and read combustion gas car gas cylinder massaging device according to claim 1 is described, it is characterized in that: behind described processor (4) plastic packaging, be adsorbed on the described combustion gas car bonnet (7) by sucker (9), the lead (8) that this processor (4) connects passes this combustion gas car bodywork gap and extend in the car, is connected with described ID chip (3).
3, do not drive to cover radio-frequency (RF) identification and read combustion gas car gas cylinder massaging device according to claim 1 is described, it is characterized in that: the feed circuit of described electronic tag (2) are made up of battery (B), inductance (L), first electric capacity (Cp), triode (T), first resistance (R1), the 3rd resistance (R3), stabilivolt (W); The positive pole output positive supply of described battery (B), this battery (B) minus earth, behind described inductance (L) serial connection first resistance (R1), be connected in parallel on the two ends of described first electric capacity (Cp), the minus earth of this first electric capacity (Cp), the positive pole of described first electric capacity (Cp) connects the base stage of described triode (T), the collector of this triode (T) connects described positive supply, the emitter of described triode (T) is connected in series described the 3rd resistance (R3) back ground connection, and this emitter also connects the input end V of described voltage stabilizer (W)
IN, the output terminal V of this voltage stabilizer (W)
OUTOutput voltage stabilizing electricity is given described electronic tag (2), the ground end ground connection of described voltage stabilizer (W).
4, read the gas cylinder massaging device automatically according to the described combustion gas car of claim 1 lid of not driving, it is characterized in that: described electronic tag (2) is provided with at least one ID chip (3), connect by bus between each ID chip (3), the output terminal of described each ID chip (3) also connects back connection described processor (4).
5, do not drive to cover radio-frequency (RF) identification and read combustion gas car gas cylinder massaging device according to claim 1 is described, it is characterized in that: described processor (4) is by first single-chip microcomputer (U1), the one RF transmitter module (RFS), the one RF receiver module (RFR) is formed, the output terminal P3.2 output data information of described first single-chip microcomputer (U1) is given the input end of a described RF transmitter module (RFS), the output terminal of the one RF transmitter module (RFS) connects described antenna (5), outwards launch described data message, the input end P3.4 of described first single-chip microcomputer (U1) receives the pumping signal of the output terminal output of a described RF receiver module (RFR), the input end of the one RF receiver module (RFR) connects described antenna (5), receive described pumping signal, the signal of described first single-chip microcomputer (U1) obtains end P0.1 and is connected with described ID chip (3), reads described gas cylinder (6) information.
6, do not drive to cover radio-frequency (RF) identification and read combustion gas car gas cylinder massaging device according to claim 5 is described, it is characterized in that: described first single-chip microcomputer (U1) also is connected with first reset circuit, described first reset circuit is by first reset switch (RESET), second electric capacity (C1), the 5th resistance (R5), the 6th resistance (R6) is formed, the positive pole of described second electric capacity (C1) connects power supply, the negative pole of this second electric capacity (C1) is through described the 6th resistance (R6) ground connection, one termination power of described first reset switch (RESET), after the other end is connected in series described the 5th resistance (R5), be connected with the negative pole of described second electric capacity (C1), the negative pole of this second electric capacity (C1) is connected with the RESET end of described first single-chip microcomputer (U1).
7, do not drive to cover radio-frequency (RF) identification and read combustion gas car gas cylinder massaging device according to claim 1 is described, it is characterized in that: described reader (1) is by second singlechip (U1 '), the 2nd RF transmitter module (RFS '), the 2nd RF receiver module (RFR ') and bus chip (UZ) composition, the output terminal P3.2 output drive signal of described second singlechip (U1 ') is given the input end of described the 2nd RF transmitter module (RFS '), the output terminal of the 2nd RF transmitter module (RFS ') connects described antenna (5), outwards launch this pumping signal, the input end P3.4 of described second singlechip (U1 ') receives the data message of the output terminal output of described the 2nd RF receiver module (RFR '), the input end of the 2nd RF receiver module (RFR ') connects described antenna (5), receive described data message, the TXD of described second singlechip (U1 '), the RXD end connects the T1-IN of described bus chip (UZ) respectively, the R1-OUT end, the R2-IN of this bus chip (UZ), T1-OUT, the R1-IN end is connected with extraneous.
8, do not drive to cover radio-frequency (RF) identification and read combustion gas car gas cylinder massaging device according to claim 7 is described, it is characterized in that: described second singlechip (U1 ') also is connected with second reset circuit, described second reset circuit is by second reset switch (RESET '), the 3rd electric capacity (C1 '), the 8th resistance (R5 '), the 9th resistance (R6 '), form, the positive pole of described the 3rd electric capacity (C1 ') connects power supply, the negative pole of the 3rd electric capacity (C1 ') is through described the 9th resistance (R6 ') ground connection, one termination power of described first reset switch (RESET), after the other end is connected in series described the 8th resistance (R5 '), be connected with the negative pole of described the 3rd electric capacity (C1 '), the RESET end of the negative pole of the 3rd electric capacity (C1 ') and described second singlechip (U1 ') is connected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820097744XU CN201159902Y (en) | 2008-03-04 | 2008-03-04 | Apparatus for recognizing and reading gas vehicle gas cylinder information without opening cap |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820097744XU CN201159902Y (en) | 2008-03-04 | 2008-03-04 | Apparatus for recognizing and reading gas vehicle gas cylinder information without opening cap |
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| CN201159902Y true CN201159902Y (en) | 2008-12-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102642608A (en) * | 2012-05-07 | 2012-08-22 | 湖北三江船艇科技有限公司 | Liquefied natural gas yacht |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102642608A (en) * | 2012-05-07 | 2012-08-22 | 湖北三江船艇科技有限公司 | Liquefied natural gas yacht |
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Granted publication date: 20081203 Termination date: 20110304 |