CN108038399B - Automatic detection device and detection method for reading and writing card of intelligent IC card gas meter - Google Patents
Automatic detection device and detection method for reading and writing card of intelligent IC card gas meter Download PDFInfo
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- CN108038399B CN108038399B CN201810075995.6A CN201810075995A CN108038399B CN 108038399 B CN108038399 B CN 108038399B CN 201810075995 A CN201810075995 A CN 201810075995A CN 108038399 B CN108038399 B CN 108038399B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0095—Testing the sensing arrangement, e.g. testing if a magnetic card reader, bar code reader, RFID interrogator or smart card reader functions properly
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
- G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
- G07F7/0873—Details of the card reader
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Abstract
The invention relates to an automatic detection device and a detection method for a read-write card of an intelligent IC card gas meter. The device consists of an IC card data and control interface, an IC card selection analog switch module, an IC card switching analog switch module, an IC card in-place analog switch module, a logic encryption card chip, a CPU card chip and an analog interface card. The invention adopts an on-line card manufacturing mode to replace a physical tool card which is necessary for the traditional detection mode, replaces the step of preparing the tool card in advance in the traditional detection mode, saves the consumption of the physical IC card, and reduces the workload of card manufacturing and wire changing; the card seat interface of the on-line checking meter or the whole gas meter is led out in a mode of simulating the interface card, and the mode of on-line card making and electronic control signal triggering is combined, so that the action of manually repeatedly inserting and extracting the card in the traditional detection mode is replaced, the simulated interface card is only required to be inserted in the beginning in the detection process, the manual operation intensity is reduced, and the occurrence of misoperation is avoided.
Description
Technical Field
The invention relates to an automatic detection device and a detection method for a read-write card of an intelligent IC card gas meter.
Background
In the production and manufacturing process of the civil IC card intelligent gas meter, specific data are often required to be input into the charging device or the complete machine by taking the IC card as a carrier in the detection stage of the charging device and the complete machine, and meanwhile, the data are also required to be acquired from the charging device or the complete machine by taking the IC card as the carrier for comparison and checking whether the data are correct or not. Under the traditional manual detection mode, relevant card writing data are needed to be prepared in advance, an operation computer is used for manufacturing a corresponding tool IC card through a card reader-writer, and an operator inserts the corresponding tool IC card into a card seat of a charging device or a complete gas meter according to the process requirements of a working procedure. Because a lot of detection steps all need to use tool IC card to input data to the billing meter or the complete machine in the whole detection process so as to meet the detection requirement, operators are required to frequently plug tool IC cards with different functions in the whole detection process, misoperation is easy to occur, the detection efficiency is low, a plurality of stations are required to detect simultaneously in order to meet the productivity requirement, the usage amount of the tool IC card is increased, and the manufacturing, management, calling and changing work of the tool IC card are very complicated.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention aims to provide a technical scheme of an automatic detection device and a detection method for a read-write card of an intelligent IC card gas meter.
The automatic detection device for the read-write card of the intelligent IC card gas meter is characterized in that: the device consists of an IC card data and control interface, an IC card selection analog switch module, an IC card switching analog switch module, an IC card in-place analog switch module, a logic encryption card chip, a CPU card chip and an analog interface card, wherein the IC card data and control interface is connected with the IC card selection analog switch module, the IC card switching analog switch module and the IC card in-place analog switch module, the logic encryption card chip and the CPU card chip are connected with the IC card selection analog switch module, the IC card switching analog switch module is connected with the IC card selection analog switch module and the analog interface card, and the IC card in-place analog switch module is connected with the analog interface card.
The automatic detection device for the read-write card of the intelligent IC card gas meter is characterized in that the IC card data and control interface consists of an IC card data interface, an IC card in-place control interface, an IC card switching control interface and an IC card selection control interface, wherein the IC card data and control interface is a circuit interface which is used for receiving external control signals and simultaneously is also used as an input and output interface of the IC card data; the IC card data interface is connected with the IC card switching analog switch module through the IC card data read-write bus, the IC card in-place control interface is connected with the IC card in-place analog switch module through the IC card in-place control line, the IC card switching control interface is connected with the IC card switching analog switch module through the IC card switching control line, the IC card selection control interface is connected with the IC card selection analog switch module through the IC card selection control line, and the IC card in-place control interface, the IC card switching control interface and the IC card selection control interface are used for receiving control signals of an external controller and controlling analog switch integrated circuits in the IC card in-place analog switch module, the IC card switching analog switch module and the IC card selection analog switch module.
The automatic detecting device is characterized in that the IC card selection analog switch module consists of an analog switch integrated circuit and an IC card selection control line, a single-pole double-throw analog electronic switch is arranged in the analog switch integrated circuit, one of two fixed ends of the single-pole double-throw analog electronic switch is communicated with a logic encryption card chip through a logic encryption card data bus, the other of the two fixed ends of the single-pole double-throw analog electronic switch is communicated with the CPU card chip through a CPU card data bus, a common end of the single-pole double-throw analog electronic switch is connected to an IC card data connection bus, the analog switch integrated circuit is connected to an IC card selection control interface through the IC card selection control line, and the common end of the single-pole double-throw analog electronic switch is communicated with one of the two fixed ends according to a control signal on the IC card selection control line, so that the logic encryption card chip or the CPU card chip is connected to the IC card data connection bus through the logic encryption card data bus or the CPU card data bus.
The automatic detection device is characterized in that the IC card switching analog switch module consists of an analog switch integrated circuit and an IC card switching control line, a single-pole double-throw type analog electronic switch is arranged in the analog switch integrated circuit, one of two fixed ends of the single-pole double-throw type analog electronic switch is connected with an IC card data interface through an IC card read-write data bus, the other of the two fixed ends of the single-pole double-throw type analog electronic switch is connected with an analog interface card through an analog card connecting bus, a common end of the single-pole double-throw type analog electronic switch is connected to the IC card data connecting bus, the analog switch integrated circuit is connected to the IC card switching control interface through the IC card switching control line, and the common end of the single-pole double-throw type analog electronic switch is communicated with one of the two fixed ends according to a control signal on the IC card switching control line, so that the IC card data connecting bus is connected with the IC card read-write data bus or the analog card connecting bus.
The automatic detection device for the intelligent IC card gas meter reading and writing card is characterized in that the IC card in-place analog switch module consists of an analog switch integrated circuit and an IC card in-place control line, a single-pole single-throw analog electronic switch is arranged in the analog switch integrated circuit, two ends of the single-pole single-throw analog electronic switch are respectively connected with an in-place switch contact I and an in-place switch contact II on the analog interface card, the analog switch integrated circuit is connected to an IC card in-place control interface through the IC card in-place control line, and the single-pole single-throw analog electronic switch is closed or opened according to a control signal on the IC card in-place control line, so that the on-off between the in-place switch contact I and the in-place switch contact II on the analog interface card is controlled.
The automatic detection device for the read-write card of the intelligent IC card gas meter is characterized in that the analog interface card consists of a standard IC card contact and an in-place switch contact, and the in-place switch contact consists of an in-place switch contact I and an in-place switch contact II; the analog interface card is an electronic circuit board with the outline dimension conforming to the ISO/IEC 7810 standard, and the standard IC card contacts are arranged at the positions required by the ISO/IEC 7810 standard and are connected with the analog card connecting bus; the standard IC card contact is used for being in contact communication with a reed in a card holder when the analog interface card is inserted into the card holder on the to-be-detected fee counter or the gas meter complete machine, so that an IC card read-write bus in the to-be-detected fee counter or the gas meter complete machine is connected with an analog card connecting bus, and then is communicated with a logic encryption card chip or a CPU card chip through an IC card data connecting bus, a logic encryption card data bus and a CPU card data bus under the control of an analog switch integrated circuit and a single-pole double-throw analog electronic switch in the analog switch integrated circuit, so that the fee counter or the gas meter complete machine reads and writes the IC card chip in the device.
The automatic detection device for the read-write card of the intelligent IC card gas meter is characterized in that an in-place switch contact I and an in-place switch contact II are used for being respectively communicated with two ends of a mechanical in-place switch in a card holder when an analog interface card is inserted into an IC card holder in a to-be-detected charging device or a gas meter complete machine, so that two ends of the switch in the card holder are connected to two ends of a single-pole single-throw analog electronic switch in an analog switch integrated circuit, and a control signal received by an IC card in-place control interface controls the analog switch integrated circuit through an IC card in-place control line so as to control on-off of the in-place switch of the IC card holder in the to-be-detected charging device or the gas meter complete machine.
The automatic detection device for the intelligent IC card gas meter read-write card is characterized in that the logic encryption card chip is a physical SLE4442 logic encryption card, after the logic encryption card chip is gated by the IC card selection analog switch module, the logic encryption card chip is selectively communicated with an IC card data interface or an analog interface card through the IC card switching analog switch module, when the logic encryption card chip is communicated with the IC card data interface, an external controller writes data into the logic encryption card chip through the IC card data interface, so that the logic encryption card chip becomes a tool card required by detection, and the data can be read out from the logic encryption card chip, thereby obtaining the internal parameters of an on-check fee counter or a gas meter complete machine; when the logic encryption card is communicated with the analog interface card, the analog interface card is communicated with an IC card seat on the checking and charging device or the gas meter complete machine, so that the reading and writing of the logic encryption card chip by the charging device or the gas meter complete machine using the logic encryption card are realized.
The automatic detection device for the read-write card of the intelligent IC card gas meter is characterized in that the CPU card chip is a real CPU card, after being gated by the IC card selection analog switch module, the IC card is used for switching the analog switch module to select to be communicated with an IC card data interface or an analog interface card, when the IC card data interface is communicated with the IC card data interface, an external controller writes data into the CPU card chip through the IC card data interface, so that the IC card chip becomes a tool card required for detection, and the data can be read out from the CPU card chip, thereby obtaining the internal parameters of an in-situ detection meter or a gas meter complete machine; when the CPU card is communicated with the analog interface card, the analog interface card is communicated with an IC card seat on the checking and charging device or the gas meter complete machine, so that the reading and writing of the CPU card chip by the charging device or the gas meter complete machine using the CPU card are realized.
The automatic detection method for the read-write card of the intelligent IC card gas meter is characterized by comprising the following steps of:
when the external controller needs to transmit data to the checking and charging device or the whole gas meter, firstly, sending a card-making and reading control signal to communicate the IC card chip with the external controller, writing the data into the IC card chip, then sending a card-inserting control signal to communicate the IC card chip with the checking and charging device or the whole gas meter, and finally sending a card-in-place signal to trigger the checking and charging device or the whole gas meter to read and write the IC card chip;
the external controller sends out the card selecting control signal immediately after sending out the card making and reading control signal and the card inserting control signal so as to indicate whether the logic encryption card or the CPU card needs to be operated currently.
The invention has the advantages that:
1. the on-line card manufacturing mode is adopted to replace a physical tool card which is necessary for the traditional detection mode, the step of preparing the tool card in advance in the traditional detection mode is replaced, the consumption of the physical IC card is saved, and the workload of card manufacturing and line changing is reduced;
2. the card seat interface of the on-line checking meter or the whole gas meter is led out by adopting a mode of simulating an interface card, and the mode of on-line card making and electronic control signal triggering is combined, so that the action of manually repeatedly inserting and extracting the card in the traditional detection mode is replaced, the simulated interface card is only required to be inserted in the beginning in the detection process, the manual operation intensity is reduced, and the occurrence of misoperation is avoided;
3. the internal data of the checking and charging device or the whole gas meter is acquired by adopting the modes of on-line card making, electronic control signal triggering and on-line card reading, and is faster and more convenient than the mode of using a real tool card in the traditional detection mode;
4. and the gas meter detection by adopting a logic encryption card and a CPU card type IC card is considered, so that the switching is convenient.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Description of the embodiments
The invention is further described below with reference to the accompanying drawings:
the invention provides an automatic detecting device for reading and writing a card of an intelligent IC card gas meter, which can input control signals and card making data by an external controller, obtain a tool IC card required by a corresponding detecting procedure by erasing and writing an internal IC card chip in real time, communicate the prepared tool IC card with a card seat of the checking meter or the gas meter complete machine, and trigger card inserting in-place signals of the meter or the gas meter complete machine at the outside to read and write the IC card chip in the device, thereby realizing the function of transmitting data to the meter or the gas meter complete machine from outside. The device can also read the data in the IC card chip read and written by the charger or the whole gas meter and output the data to an external controller, thereby realizing the function of acquiring the internal parameters of the charger or the whole gas meter. The device integrates two types of IC card chips, namely a logic encryption card and a CPU card, and an external controller can select the IC card chip to be operated so as to respectively support the detection requirement of a charging device or a complete machine using the two types of IC cards.
The invention is composed of an IC card data and control interface 1, an IC card selection analog switch module 2, an IC card switching analog switch module 3, an IC card in-place analog switch module 4, a logic encryption card chip 5, a CPU card chip 6 and an analog interface card 7, wherein the IC card data and control interface 1 is connected with the IC card selection analog switch module 2, the IC card switching analog switch module 3 and the IC card in-place analog switch module 4, the logic encryption card chip 5 and the CPU card chip 6 are connected with the IC card selection analog switch module 2, the IC card switching analog switch module 3 is connected with the IC card selection analog switch module 2 and the analog interface card 7, and the IC card in-place analog switch module 4 is connected with the analog interface card 7. The IC card data and control interface 1 is composed of an IC card data interface 11, an IC card in-place control interface 12, an IC card switching control interface 13 and an IC card selection control interface 14, wherein the IC card data and the control interface 1 are a circuit interface which is used for receiving external control signals and is also used as an input and output interface of the IC card data; the IC card data interface 11 is connected with the IC card switching analog switch module 3 through the IC card data read-write bus 111, the IC card in-place control interface 12 is connected with the IC card in-place analog switch module 4 through the IC card in-place control line 42, the IC card switching control interface 13 is connected with the IC card switching analog switch module 3 through the IC card switching control line 32, the IC card selection control interface 14 is connected with the IC card selection analog switch module 2 through the IC card selection control line 22, and the IC card in-place control interface 12, the IC card switching control interface 13 and the IC card selection control interface 14 are used for receiving control signals of an external controller and controlling analog switch integrated circuits inside the IC card in-place analog switch module 4, the IC card switching analog switch module 3 and the IC card selection analog switch module 2.
The IC card selection analog switch module 2 of the invention is composed of an analog switch integrated circuit 21 and an IC card selection control line 22, wherein a single-pole double-throw analog electronic switch is arranged in the analog switch integrated circuit 21, one of two fixed ends of the single-pole double-throw analog electronic switch is communicated with a logic encryption card chip 5 through a logic encryption card data bus 51, the other of the two fixed ends of the single-pole double-throw analog electronic switch is communicated with a CPU card chip 6 through a CPU card data bus 61, the common end of the single-pole double-throw analog electronic switch is connected to an IC card data connection bus 112, the analog switch integrated circuit 21 is connected to an IC card selection control interface 14 through the IC card selection control line 22, and the single-pole double-throw analog electronic switch communicates the common end of the single-pole double-throw analog electronic switch with one of the two fixed ends according to a control signal on the IC card selection control line 22, so that the logic encryption card chip 5 or the CPU card chip 6 is connected to the IC card data connection bus 112 through the logic encryption card data bus 51 or the CPU card data bus 61.
The IC card switching analog switch module 3 of the invention is made up of analog switch integrated circuit 31 and IC card switching control line 32, there is a single-pole double-throw analog electronic switch in the analog switch integrated circuit 31, one of two dead ends of the single-pole double-throw analog electronic switch is connected with IC card data interface 11 through IC card read-write data bus 111, another one of two dead ends of the single-pole double-throw analog electronic switch is connected with analog interface card 7 through analog card connecting bus 711, the public end of the single-pole double-throw analog electronic switch is connected to IC card data connecting bus 112, the analog switch integrated circuit 31 is connected to IC card switching control interface 13 through IC card switching control line 32, the single-pole double-throw analog electronic switch communicates the public end of the single-pole double-throw analog electronic switch with one of two dead ends according to the control signal on the IC card switching control line 32, thus connect IC card data connecting bus 112 with IC card read-write data bus 111 or analog card connecting bus 711.
The IC card in-place analog switch module 4 is composed of an analog switch integrated circuit 41 and an IC card in-place control line 42, a single-pole single-throw analog electronic switch is arranged in the analog switch integrated circuit 41, two ends of the single-pole single-throw analog electronic switch are respectively connected with an in-place switch contact I721 and an in-place switch contact II 722 on the analog interface card 7, the analog switch integrated circuit 41 is connected to the IC card in-place control interface 12 through the IC card in-place control line 42, and the single-pole single-throw analog electronic switch is closed or opened according to a control signal on the IC card in-place control line 42, so that the on-off between the in-place switch contact I721 and the in-place switch contact II 722 on the analog interface card 7 is controlled.
The analog interface card 7 of the invention is composed of a standard IC card contact 71 and an in-place switch contact 72, and the in-place switch contact 72 is composed of an in-place switch contact I721 and an in-place switch contact II 722; the analog interface card 7 is an electronic circuit board with an outline dimension conforming to the ISO/IEC 7810 standard, the standard IC card contact 71 is arranged at a position required by the ISO/IEC 7810 standard, and the standard IC card contact 71 is connected with the analog card connection bus 711; the standard IC card contact 71 is used to contact and communicate with a reed in a card holder when the analog interface card 7 is inserted into the card holder on the to-be-detected meter or gas meter, so as to connect the IC card read-write bus in the to-be-detected meter or gas meter with the analog card connection bus 711, and then communicate with the logic encryption card chip 5 or CPU card chip 6 through the IC card data connection bus 112, the logic encryption card data bus 51 and the CPU card data bus 61 under the control of the single-pole double-throw analog electronic switch in the analog switch integrated circuit 21, the analog switch integrated circuit 31, so that the meter or gas meter can read and write the IC card chip in the device.
The in-place switch contact I721 and the in-place switch contact II 722 are used for being respectively communicated with two ends of a mechanical in-place switch in a card holder when the analog interface card 7 is inserted into an IC card holder in a to-be-detected charging device or a gas meter complete machine, so that two ends of the switch in the card holder are connected to two ends of a single-pole single-throw analog electronic switch in the analog switch integrated circuit 41, and a control signal received by the IC card in-place control interface 12 controls the analog switch integrated circuit 41 through an IC card in-place control line 42 so as to control on-off of the in-place switch of the IC card holder in the to-be-detected charging device or the gas meter complete machine. The original card inserting mechanical action trigger is converted into the electronic control signal trigger.
The logic encryption card chip 5 is a physical SLE4442 logic encryption card, and is selected to be communicated with the IC card data interface 11 or the analog interface card 7 through the IC card switching analog switch module 3 after being gated with the IC card selection analog switch module 2, when the logic encryption card chip is communicated with the IC card data interface 11, an external controller writes data into the logic encryption card chip 5 through the IC card data interface 11, so that the logic encryption card chip 5 becomes a tool card required by detection, and the data can be read out from the logic encryption card chip 5, thereby obtaining internal parameters of an in-check meter or a gas meter complete machine; when the logic encryption card is communicated with the analog interface card 7, the analog interface card 7 is communicated with an IC card seat on the whole meter or the gas meter, so that the meter or the gas meter using the logic encryption card can read and write the logic encryption card chip 5.
The CPU card chip 6 is a real CPU card, and is selected to be communicated with the IC card data interface 11 or the analog interface card 7 through the IC card switching analog switch module 3 after being gated by the IC card selecting analog switch module 2, when the CPU card chip 6 is communicated with the IC card data interface 11, an external controller writes data into the CPU card chip 6 through the IC card data interface 11, so that the CPU card chip 6 becomes a tool card required for detection, and the data can be read out from the CPU card chip 6, thereby obtaining the internal parameters of an on-site detection fee counter or a gas meter complete machine; when the CPU card is communicated with the analog interface card 7, the analog interface card 7 is communicated with an IC card seat on the meter or the gas meter, so that the meter or the gas meter using the CPU card can read and write the CPU card chip 6.
An automatic detection method for reading and writing a card of an intelligent IC card gas meter comprises the following steps:
when the external controller needs to transmit data to the checking and charging device or the whole gas meter, firstly, sending a card-making and reading control signal to communicate the IC card chip with the external controller, writing the data into the IC card chip, then sending a card-inserting control signal to communicate the IC card chip with the checking and charging device or the whole gas meter, and finally sending a card-in-place signal to trigger the checking and charging device or the whole gas meter to read and write the IC card chip; the external controller sends out the card selecting control signal immediately after sending out the card making and reading control signal and the card inserting control signal so as to indicate whether the logic encryption card or the CPU card needs to be operated currently.
The device firstly receives a card making or reading control signal through the IC card switching control interface 13, transmits the card making or reading control signal to the analog switch integrated circuit 31 in the IC card switching analog switch module 3 through the IC card switching control line 32, and after receiving the card making and reading control signal, the analog switch integrated circuit 31 communicates the IC card data connection bus 112 with the IC card data read-write bus 111, and then receives a card selecting control signal sent by an external controller through the IC card selecting control interface 14, transmits the card selecting control signal to the analog switch integrated circuit 21 in the IC card selecting analog switch module 2 through the IC card selecting control line 22, and the analog switch integrated circuit 21 selects the logic encryption card data bus 51 or the CPU card data bus 61 to communicate with the IC card data connection bus 112 according to the received card selecting control signal. The external controller can communicate with the logic encryption card chip 5 or the CPU card chip 6 through the IC card data interface 11, the IC card read-write data bus 111, the IC card data connection bus 112, the logic encryption card data bus 51 or the CPU card data bus 61 to perform erasing operation on the card.
After the erasing is successful, the device receives a card inserting control signal through the IC card switching control interface 13, and transmits the card inserting control signal to the analog switch integrated circuit 31 in the IC card switching analog switch module 3 through the IC card switching control line 32, and the analog switch integrated circuit 31 communicates the IC card data connection bus 112 with the analog card connection bus 711 after receiving the card inserting control signal; the device receives a card selection control signal sent by an external controller through the IC card selection control interface 14, and transmits the card selection control signal to the analog switch integrated circuit 21 in the IC card selection analog switch module 2 through the IC card selection control line 22, and the analog switch integrated circuit 21 selects the logic encryption card data bus 51 or the CPU card data bus 61 to be communicated with the IC card data connection bus 112 according to the received card selection control signal. The above two steps are completed, and the checking and charging device or the whole gas meter can be communicated with the logic encryption card chip 5 or the CPU card chip 6 through the standard IC card contact 71, the analog card connection bus 711, the IC card data connection bus 112, the logic encryption card data bus 51 or the CPU card data bus 61.
After the communication is completed, the device receives a card in-place signal through the IC card in-place control interface, the card in-place signal is transmitted to the analog switch integrated circuit 41 in the IC card in-place analog switch module through the IC card in-place control line 42, the single-pole single-throw analog electronic switch inside the analog switch integrated circuit 41 is closed after the in-place signal is received, and the in-place switch inside the card seat of the checking counter or the gas meter is triggered through the in-place switch contact I721 and the in-place switch contact II 722 in the analog interface card 7, so that the checking counter or the gas meter complete machine starts to perform external card reading and writing operation through the standard IC card contact 71, the analog card connection bus 711, the IC card data connection bus 112, the logic encryption card data bus 51 or the CPU card data bus 61 and the logic encryption card chip 5 or the CPU card chip 6.
When the external controller needs to acquire the internal data of the on-check meter or the gas meter complete machine, a group of data is firstly transmitted to the on-check meter or the gas meter complete machine through the device according to the operation, and after the on-check meter or the gas meter complete machine reads the group of data, the on-check meter or the gas meter complete machine can write the self parameters back into an IC card chip (a logic encryption card chip 5 or a CPU card chip 6) in the device. Then the external controller will send out the card control signal again, the device receives the card control signal through the IC card switching control interface 13, and transmits the card control signal to the analog switch integrated circuit 31 in the IC card switching analog switch module 3 through the IC card switching control line 32, and the analog switch integrated circuit 31 communicates the IC card data connection bus 112 with the IC card data read-write bus 111 after receiving the card control signal. The device receives a card selection control signal sent by an external controller through the IC card selection control interface 14, and transmits the card selection control signal to the analog switch integrated circuit 21 in the IC card selection analog switch module 2 through the IC card selection control line 22, and the analog switch integrated circuit 21 selects the logic encryption card data bus 51 or the CPU card data bus 61 to be communicated with the IC card data connection bus 112 according to the received card selection control signal. The external controller can communicate with the logic encryption card chip 5 or the CPU card chip 6 through the IC card data interface 11, the IC card read-write data bus 111, the IC card data connection bus 112, the logic encryption card data bus 51 or the CPU card data bus 61 and read the data in the communicated IC card chip, thereby obtaining the internal data of the checking meter or the gas meter complete machine.
Claims (8)
1. An automatic detecting device for reading and writing a card of an intelligent IC card gas meter is characterized in that: the device consists of an IC card data and control interface, an IC card selection analog switch module, an IC card switching analog switch module, an IC card in-place analog switch module, a logic encryption card chip, a CPU card chip and an analog interface card, wherein the IC card data and control interface is connected with the IC card selection analog switch module, the IC card switching analog switch module and the IC card in-place analog switch module;
the IC card data and control interface consists of an IC card data interface, an IC card in-place control interface, an IC card switching control interface and an IC card selection control interface, wherein the IC card data and control interface is a circuit interface and is used for receiving external control signals and simultaneously serving as an input and output interface of the IC card data; the IC card data interface is connected with the IC card switching analog switch module through an IC card data read-write bus, the IC card in-place control interface is connected with the IC card in-place analog switch module through an IC card in-place control line, the IC card switching control interface is connected with the IC card switching analog switch module through an IC card switching control line, the IC card selection control interface is connected with the IC card selection analog switch module through an IC card selection control line, and the IC card in-place control interface, the IC card switching control interface and the IC card selection control interface are used for receiving control signals of an external controller and controlling analog switch integrated circuits in the IC card in-place analog switch module, the IC card switching analog switch module and the IC card selection analog switch module;
the IC card switching analog switch module consists of an analog switch integrated circuit and an IC card switching control line, wherein a single-pole double-throw analog electronic switch is arranged in the analog switch integrated circuit, one of two fixed ends of the single-pole double-throw analog electronic switch is connected with an IC card data interface through an IC card read-write data bus, the other of the two fixed ends of the single-pole double-throw analog electronic switch is connected with an analog interface card through an analog card connecting bus, a public end of the single-pole double-throw analog electronic switch is connected to the IC card data connecting bus, the analog switch integrated circuit is connected to the IC card switching control interface through the IC card switching control line, and the public end of the single-pole double-throw analog electronic switch is communicated with one of the two fixed ends according to a control signal on the IC card switching control line, so that the IC card data connecting bus is connected with the IC card read-write data bus or the analog card connecting bus.
2. The automatic detection device for the read-write card of the intelligent IC card gas meter according to claim 1, wherein the IC card selection analog switch module consists of an analog switch integrated circuit and an IC card selection control line, a single-pole double-throw analog electronic switch is arranged in the analog switch integrated circuit, one of two fixed ends of the single-pole double-throw analog electronic switch is communicated with the logic encryption card chip through a logic encryption card data bus, the other of the two fixed ends of the single-pole double-throw analog electronic switch is communicated with the CPU card chip through a CPU card data bus, a common end of the single-pole double-throw analog electronic switch is connected to an IC card data connection bus, the analog switch integrated circuit is connected to an IC card selection control interface through the IC card selection control line, and the common end of the single-pole double-throw analog electronic switch is communicated with one of the two fixed ends according to a control signal on the IC card selection control line, so that the logic encryption card chip or the CPU card chip is connected to the IC card data bus through the logic encryption card data bus or the CPU card data bus.
3. The automatic detection device for the read-write card of the intelligent IC card gas meter is characterized in that the IC card in-place analog switch module consists of an analog switch integrated circuit and an IC card in-place control line, a single-pole single-throw analog electronic switch is arranged in the analog switch integrated circuit, two ends of the single-pole single-throw analog electronic switch are respectively connected with an in-place switch contact I and an in-place switch contact II on the analog interface card, the analog switch integrated circuit is connected to the IC card in-place control interface through the IC card in-place control line, and the single-pole single-throw analog electronic switch is closed or opened according to a control signal on the IC card in-place control line, so that the in-place switch contact I and the in-place switch contact II on the analog interface card are controlled to be conducted or turned off.
4. The automatic detection device for the read-write card of the intelligent IC card gas meter according to claim 3, wherein the analog interface card consists of a standard IC card contact and an in-place switch contact, and the in-place switch contact consists of an in-place switch contact I and an in-place switch contact II; the analog interface card is an electronic circuit board with the outline dimension conforming to the ISO/IEC 7810 standard, and the standard IC card contacts are arranged at the positions required by the ISO/IEC 7810 standard and are connected with the analog card connecting bus; the standard IC card contact is used for being in contact communication with a reed in a card holder when the analog interface card is inserted into the card holder on the to-be-detected fee counter or the gas meter complete machine, so that an IC card read-write bus in the to-be-detected fee counter or the gas meter complete machine is connected with an analog card connecting bus, and then is communicated with a logic encryption card chip or a CPU card chip through an IC card data connecting bus, a logic encryption card data bus and a CPU card data bus under the control of an analog switch integrated circuit and a single-pole double-throw analog electronic switch in the analog switch integrated circuit, so that the fee counter or the gas meter complete machine reads and writes the IC card chip in the device.
5. The automatic detection device for the read-write card of the intelligent IC card gas meter is characterized in that the in-place switch contact I and the in-place switch contact II are respectively communicated with two ends of a mechanical in-place switch in a card holder when an analog interface card is inserted into an IC card holder in a to-be-detected charging device or a gas meter complete machine, so that two ends of the switch in the card holder are connected to two ends of a single-pole single-throw analog electronic switch in the analog switch integrated circuit, and a control signal received by an IC card in-place control interface controls the analog switch integrated circuit through an IC card in-place control line so as to control on-off of the in-place switch of the IC card holder in the to-be-detected charging device or the gas meter complete machine.
6. The automatic detection device for the read-write card of the intelligent IC card gas meter according to claim 3, wherein the logic encryption card chip is a physical SLE4442 logic encryption card, the logic encryption card chip is selected to be communicated with an IC card data interface or an analog interface card through an IC card switching analog switch module after being gated by the IC card switching analog switch module, and when the logic encryption card chip is communicated with the IC card data interface, an external controller writes data into the logic encryption card chip through the IC card data interface, so that the logic encryption card chip becomes a tool card required for detection, and the data can be read out from the logic encryption card chip, thereby obtaining the internal parameters of an on-site detection fee counter or the whole gas meter; when the logic encryption card is communicated with the analog interface card, the analog interface card is communicated with an IC card seat on the checking and charging device or the gas meter complete machine, so that the reading and writing of the logic encryption card chip by the charging device or the gas meter complete machine using the logic encryption card are realized.
7. The automatic detection device for the read-write card of the intelligent IC card gas meter according to claim 3, wherein the CPU card chip is a real CPU card, the IC card is selected to be communicated with an IC card data interface or an analog interface card through an IC card switching analog switch module after being gated by the IC card selecting analog switch module, and when the IC card data interface is communicated with the IC card data interface, an external controller writes data into the CPU card chip through the IC card data interface, so that the IC card chip becomes a tool card required for detection, and the data can be read out from the CPU card chip, thereby obtaining the internal parameters of an on-site detection meter or a gas meter complete machine; when the CPU card is communicated with the analog interface card, the analog interface card is communicated with an IC card seat on the checking and charging device or the gas meter complete machine, so that the reading and writing of the CPU card chip by the charging device or the gas meter complete machine using the CPU card are realized.
8. The automatic detection device for the read-write card of the intelligent IC card gas meter according to claim 1, wherein the detection method is as follows:
when the external controller needs to transmit data to the checking and charging device or the whole gas meter, firstly, sending a card-making and reading control signal to communicate the IC card chip with the external controller, writing the data into the IC card chip, then sending a card-inserting control signal to communicate the IC card chip with the checking and charging device or the whole gas meter, and finally sending a card-in-place signal to trigger the checking and charging device or the whole gas meter to read and write the IC card chip;
the external controller sends out the card selecting control signal immediately after sending out the card making and reading control signal and the card inserting control signal so as to indicate whether the logic encryption card or the CPU card needs to be operated currently.
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