CN103810453A - Bar code scanner and base based on pin reuse - Google Patents
Bar code scanner and base based on pin reuse Download PDFInfo
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- CN103810453A CN103810453A CN201210456104.4A CN201210456104A CN103810453A CN 103810453 A CN103810453 A CN 103810453A CN 201210456104 A CN201210456104 A CN 201210456104A CN 103810453 A CN103810453 A CN 103810453A
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Abstract
The invention provides a bar code scanner based on pin reuse. The bar code scanner which optimally adopts a lithium battery is matched with a base which can charge the lithium battery. The bar code scanner and the base are charged or performed data transmission through a first information terminal. The bar code scanner based on the pin reuse is characterized by comprising a first micro-processor, a first logic circuit, a first communication device, a first charge-discharge terminal, a first grounding terminal, a first temperature monitoring terminal, a first information terminal and a first change-over switch. The invention also provides the base based on the pin reuse and a corresponding control method. The bar code scanner and the base based on the pin reuse have the advantages of not only providing a function of automatically connecting the bar code scanner and the base wirelessly, meanwhile providing extra power sources to support the bar code scanner to continue working, not damaging lithium battery charging circulation and prolonging the battery service life under the existing mechanical size.
Description
Technical field
The present invention relates to wireless telecommunication system, especially wireless scanner disposal system, particularly, relates to barcode scanner and corresponding pedestal based on pin multiplexing.
Background technology
In the modern society of scientific and technological high speed development, increasing convenience-for-people product is invented use.It is more efficient and convenient that the appearance of barcode scanner makes resident do shopping especially, the management of product of each incorporated business medelling more.Since barcode scanner invention, it has been used in all kinds of occasions, as supermarket shopping, and the logistics management of product, library book management etc.Barcode scanner is from original wired wireless version till now, through repeatedly improving and upgrading.
At present, the wireless version of barcode scanner, passes through lithium battery power supply conventionally.Due to mechanism size restriction, the charge connector of lithium battery has 4 pins conventionally.Respectively to discharge and recharge terminal, external power terminal, monitoring temperature terminal and ground terminal.The communication of the charging of lithium battery and scanner and pedestal can not carry out simultaneously, makes so whole operational paradigm not high, and the destroyed battery life that reduces lithium battery of lithium cell charging circulation.But lithium battery frequently change that use caused again must environmental pollution, this does not also meet the theory of society sustainable development.The battery charging that how to improve barcode scanner is the target that the present invention studies.This programme is by multiplexing external power terminal, as signal terminal, for communication.In the time that barcode scanner is put into pedestal, scanner can transmit link address by signal terminal, carries out wireless connections.Guaranteed that like this battery is in the time of charging, bar-code scanner can work on, and does not affect battery charging and battery life simultaneously.
Summary of the invention
Cannot, in transmission data and the technological deficiency of charging and coordinating and managing, the object of this invention is to provide a kind of barcode scanner and pedestal based on pin multiplexing based on above-mentioned barcode scanner and pedestal.
According to an aspect of the present invention, a kind of barcode scanner based on pin multiplexing is provided, described barcode scanner preferably adopts lithium battery, and described barcode scanner and one can adapt for the pedestal of described lithium cell charging, described barcode scanner and described pedestal charge or data transmission by first information terminal, it is characterized in that, described barcode scanner comprises:
First microprocessor, it is for to processing from outside data;
The first logical circuit, described logical circuit is used for judging that controlling described first information terminal enters charged state or data transmission state;
The first communication device, it is for carrying out communication with outside;
First discharges and recharges terminal, and it is for the charging of described barcode scanner;
The first ground terminal, it prevents electric leakage, electrostatic damage element for safeguard protection is provided;
The first monitoring temperature terminal, its temperature control during for charging and discharging lithium battery;
First information terminal, it is for transmission information;
The first change-over switch, described the first change-over switch is electrically connected with described the first logical circuit, and one end of described the first change-over switch is connected with described first information terminal, the other end of described the first change-over switch can be connected with described the first communication device and also can be connected with an external power source connecting line, and the described other end of described the first change-over switch switches between described the first communication device and described external power source connecting line according to the control signal of described the first logical circuit.
According to another aspect of the present invention, a kind of pedestal based on pin multiplexing is provided, described pedestal connects external power source, and described pedestal and barcode scanner claimed in claim 1 adapt, described pedestal and described barcode scanner charge or data transmission to described barcode scanner by secondary signal terminal, it is characterized in that, described pedestal comprises:
The second microprocessor, it is for to processing from outside data;
The second logical circuit, described logical circuit is used for judging that controlling described secondary signal terminal enters charged state or data transmission state;
The second communication device, it is for carrying out communication with described barcode scanner;
Second discharges and recharges terminal, and it is for the charging of described barcode scanner;
The second ground terminal, it prevents electric leakage, electrostatic damage element for safeguard protection is provided;
The second monitoring temperature terminal, its temperature control during for charging and discharging lithium battery;
The second information terminal, it charges for transmission information or to controlling described barcode scanner;
One charging device, it is variable DC voltage for changing fixing DC voltage, and its one end and described second discharges and recharges terminal and is connected, and the other end is connected with described the 3rd change-over switch;
One electric power controller, its for the power supply that receives lithium battery or external power source and provide to provide electric power to described barcode scanner;
The second change-over switch, described the second change-over switch is electrically connected with described the second logical circuit, and one end of described the second change-over switch is connected with described information terminal, the other end of described the second change-over switch can be connected with described communication device and also can be connected with the 3rd change-over switch, and the described other end of described the second change-over switch switches between described communication device and described the 3rd change-over switch according to the control signal of described the second logical circuit;
The 3rd change-over switch, described the 3rd change-over switch is electrically connected with described the second logical circuit, and one end of described the 3rd change-over switch is connected with described electric power controller, the other end of described the 3rd change-over switch can be connected with the other end of described the second change-over switch and also can be connected with described charging device, and the described other end of described the 3rd change-over switch switches between the other end of described the second change-over switch and described charging device according to the control signal of described the second logical circuit.
According to a further aspect of the invention, provide a kind of according to the control method of by pin multiplexing technology, described barcode scanner being charged in above-mentioned barcode scanner and said base, it controls the secondary signal terminal of described pedestal and the first signal terminal of described barcode scanner charges or data transmission to described barcode scanner, it is characterized in that, comprise the steps:
A. put into after described pedestal at described barcode scanner, judge whether both have set up data and connected;
If b. described barcode scanner has been set up data with described pedestal and is connected, further whether judgement data transmission is between the two complete;
If c. described data transmission is complete, further judge whether the address of described barcode scanner and the address of described pedestal mate;
If the d. address of described barcode scanner and the matching addresses of described pedestal, the first change-over switch described in the first logical circuit control of described barcode scanner, make described first signal terminal carry out charged state, the second change-over switch described in the second logical circuit control of described pedestal, makes described secondary signal terminal carry out charged state.
Preferably, if also comprise the steps: after described step b, the described data transmission of e. is not complete, continues to transmit data between described barcode scanner and described pedestal, and continues to carry out described step b.
Preferably, if also comprising the steps: the address of the described barcode scanner of f. and the address of described pedestal after described step c does not mate, the first change-over switch described in the first logical circuit control of described barcode scanner, make described first signal terminal keep data transmission state, the second change-over switch described in the second logical circuit control of described pedestal, make described secondary signal terminal keep data transmission state, and described barcode scanner is used for to described pedestal transmission the solicited message connecting.
The invention has the beneficial effects as follows under existing machinery size, not only provide bar-code scanner and pedestal wireless autoconnect function, meanwhile, provide additional power supply to support that bar-code scanner works on, do not destroy lithium cell charging circulation, extended battery life.
Accompanying drawing explanation
By reading the detailed description of non-limiting example being done with reference to the following drawings, it is more obvious that other features, objects and advantages of the present invention will become:
Fig. 1 illustrates according to the first embodiment of the present invention, the pedestal block diagram of the application of pin multiplexing technology in lithium cell charging;
Fig. 2 illustrates according to the first embodiment of the present invention, the barcode scanner block diagram of the application of pin multiplexing technology in lithium cell charging;
Fig. 3 illustrates according to the first embodiment of the present invention, the block diagram of the barcode scanner charging of the application of pin multiplexing technology in lithium cell charging;
Fig. 4 illustrates according to the first embodiment of the present invention, the process flow diagram of the pedestal of the application of pin multiplexing technology in lithium cell charging; And
Fig. 5 illustrates according to the first embodiment of the present invention, the bar code scan of the application of pin multiplexing technology in lithium cell charging with process flow diagram;
Embodiment
By reading the detailed description of non-limiting example being done with reference to the following drawings, it is more obvious that other features, objects and advantages of the present invention will become:
Fig. 1 illustrates according to the first embodiment of the present invention, the pedestal block diagram of the application of pin multiplexing technology in lithium cell charging.Particularly, for clearer the application at lithium cell charging of pin multiplexing technology that technical solution of the present invention provides described, in the present embodiment, pedestal block diagram comprises a microcontroller, a logical circuit, a communication device, an external power source, a change-over switch and four terminals, what also can support is pin.Four pins comprise that discharges and recharges a terminal, and one sends reception communication terminal is information terminal, and this terminal and external power terminal are multiplexing, a monitoring temperature terminal, a ground terminal.Particularly, it will be appreciated by those skilled in the art that the control of described microcontroller for pedestal connection judgment, communication and processing and pin multiplexing switching; Described logical circuit carries out signal logic control switch and controls the switching of pin multiplexing for the connection status judged according to described microcontroller; Described communication device is for the control of pedestal and barcode scanner information communication; Described external power source, voltage is 5 volts, for the work of barcode scanner when the lithium cell charging is provided; Described change-over switch realizes the switching of pin multiplexing for the switching of described communication device and described external power source; Discharge and recharge the charging of terminal for barcode scanner; Ground terminal is for safe protection, prevents electric leakage, electrostatic damage element and as physical features reference point; Temperature control when monitoring temperature terminal is used for charging and discharging lithium battery; Described information terminal is used for transmitting corresponding address information multiplexing with external power terminal; External power terminal is for providing the running of barcode scanner.
More specifically, it will be appreciated by those skilled in the art that the microcontroller of described pedestal, in the time that described barcode scanner is not put into pedestal, control the wireless telecommunications of barcode scanner and pedestal.Preferably, those skilled in the art understand, the microcontroller of described pedestal and the microcontroller of barcode scanner use the forms of broadcasting first to carry out transmission and the authentication of address information by a certain agreement, and authentication code while producing for data and command transfer, the transmission that the microcontroller of described pedestal and the microcontroller of barcode scanner use broadcast and authentication code to carry out data and order by the described agreement afterwards line correlation setting of going forward side by side, does not repeat them here.After described bar-code scanner is put into described pedestal and is charged, the microcontroller of described barcode scanner carries out relevant treatment and transmission by described information terminal and described communication device to the address of receiving, authentication code while receiving for data and command transfer, the transmission that the microcontroller of described pedestal and the microcontroller of barcode scanner use radio broadcasting and authentication code to carry out data and order by the described agreement afterwards line correlation setting of going forward side by side, and according to connection status and the connection attribute of judgement, signal is sent to described logical circuit.Described logical circuit comes control information terminal and the multiplexing switching of external power source input terminal by microcontroller transmitted signal being carried out to logical process with door, not gate and Sheffer stroke gate etc. to control change-over switch.Change-over switch initial default is that described information terminal is connected with described communicator, described communication device is connected with the microcontroller of described information terminal and described pedestal, described communication device receives the information that the microcontroller of described pedestal sends and it is outwards sent from information terminal, and described communication device is same to be received by information terminal and receive the information of sending from barcode scanner and the microcontroller that is forwarded to described pedestal processed.When connection status is shown as " successful connection ", and connection attribute is shown as after " address information is transmitted ", and described logical circuit control change-over switch switches to described external power source, described information terminal is switched to external power source lead-out terminal.Described change-over switch switches to described external power source, and described external power source is powered to barcode scanner by external power source lead-out terminal.After having connected, preferably, the communication between affiliated barcode scanner and described pedestal completes by radio broadcasting agreement.Do not repeat them here.
Fig. 2 illustrates according to the first embodiment of the present invention, the barcode scanner block diagram of the application of pin multiplexing technology in lithium cell charging.Particularly, for clearer the application at lithium cell charging of pin multiplexing technology that technical solution of the present invention provides described, in the present embodiment, barcode scanner block diagram comprises a microcontroller, a logical circuit, a communication device, a charging device, an electric power controller, two each and every one change-over switch and four terminals, what also can support is pin.Four pins comprise that discharges and recharges a terminal, and one sends reception communication terminal is information terminal, and this terminal and external power terminal are multiplexing, a monitoring temperature terminal, a ground terminal.Particularly, it will be appreciated by those skilled in the art that the control of described microcontroller for barcode scanner connection judgment, communication and processing and pin multiplexing switching; Described logical circuit carries out signal logic control switch and controls the switching of pin multiplexing for the connection status judged according to described microcontroller; Described communication device is for the control of pedestal and barcode scanner information communication; It is variable DC voltage that described charging device is used for changing fixing DC voltage, is lithium cell charging; Described electric power controller, required voltage is 5 volts, for receiving lithium battery power supply or external power source so that the work of barcode scanner to be provided; Described change-over switch is for described communication device, and the switching of described lithium battery power supply and external power source realizes the switching of pin multiplexing; Discharge and recharge the charging of terminal for barcode scanner; Ground terminal is for safe protection, prevents electric leakage, electrostatic damage element and as physical features reference point; Temperature control when monitoring temperature terminal is used for charging and discharging lithium battery; Described information terminal is used for transmitting corresponding address information multiplexing with external power terminal; External power terminal is for providing the running of barcode scanner.
More specifically, it will be appreciated by those skilled in the art that the microcontroller of described pedestal, in the time that described barcode scanner is not put into pedestal, control the wireless telecommunications of barcode scanner and pedestal.Preferably, those skilled in the art understand, the microcontroller of described pedestal and the microcontroller of barcode scanner use the forms of broadcasting first to carry out transmission and the authentication of address information by a certain agreement, and authentication code while producing for data and command transfer, the transmission that the microcontroller of described pedestal and the microcontroller of barcode scanner use broadcast and authentication code to carry out data and order by the described agreement afterwards line correlation setting of going forward side by side, does not repeat them here.After described bar-code scanner is put into described pedestal and is charged, the microcontroller of described pedestal carries out relevant treatment and transmission by described information terminal and described communication device to the address of receiving, and authentication code while producing for data and command transfer, the transmission that the microcontroller of described pedestal and the microcontroller of barcode scanner use radio broadcasting and authentication code to carry out data and order by the described agreement afterwards line correlation setting of going forward side by side, and according to connection status and the connection attribute of judgement, signal is sent to described logical circuit.Described logical circuit comes control information terminal and the multiplexing switching of external power source lead-out terminal by microcontroller transmitted signal being carried out to logical process with door, not gate and Sheffer stroke gate etc. to control change-over switch.Change-over switch initial default is that information terminal is connected with described communicator, and described Blast Furnace Top Gas Recovery Turbine Unit (TRT) is connected with described charging device, and described barcode scanner now uses the lithium battery power supply being connected with charging device to carry out work.And described communication device is connected with the microcontroller of described information terminal and described pedestal, described communication device receives the information that the microcontroller of described pedestal sends and it is outwards sent from information terminal, and described communication device is same to be received by information terminal and receive the information of sending from barcode scanner and the microcontroller that is forwarded to described pedestal processed.When connection status is shown as " successful connection ", and connection attribute is shown as after " address information is transmitted ", described logical circuit control change-over switch is connected described Blast Furnace Top Gas Recovery Turbine Unit (TRT) with described external power source input terminal, switch to external power source input terminal by described information terminal.Described external power source is powered to barcode scanner by external power source input terminal and described Blast Furnace Top Gas Recovery Turbine Unit (TRT).
Further, it will be appreciated by those skilled in the art that in high temperature lithium ion battery is discharged and recharged, have the danger of blast; In low temperature, discharge and recharge, can cause damage to battery core, the temperature while therefore needing monitoring temperature terminal to lithium cell charging is monitored.Do not repeat them here.
Fig. 3 illustrates according to the first embodiment of the present invention, the block diagram of the barcode scanner charging of the application of pin multiplexing technology in lithium cell charging.Particularly, the circuit block diagram while originally illustrating described barcode scanner and insert described pedestal and connect.In conjunction with above-mentioned Fig. 1 and Fig. 2, described barcode scanner discharge and recharge terminal and ground terminal respectively as power positive cathode use and with described pedestal discharge and recharge terminal and ground terminal, namely power positive cathode connects, the monitoring temperature terminal of described barcode scanner is connected with the monitoring temperature terminal of described pedestal, and the multiplexing terminal terminal multiplexing with described pedestal of described barcode scanner is connected.Particularly, it will be appreciated by those skilled in the art that described pedestal itself is used by external power source.
Particularly, those skilled in the art understand, described barcode scanner charges and is connected with described pedestal, in the time that communication first carries out matching addresses authentication, described barcode scanner is by lithium battery power supply, after communication completes, described barcode scanner switches external power source, and communication after this is all completed by home control network communication protocol.Preferably, described wireless telecommunications can be radio broadcasting agreements, the communication of described barcode scanner and described pedestal completes by outside broadcast packet, when described barcode scanner and described pedestal receive broadcast data packet, first carry out matching addresses, when the line correlation processing of going forward side by side of reception information of matching addresses, when does not mate address, ignore, one of the present embodiment changes in example, described communication can complete by Bluetooth technology, described barcode scanner is opened Bluetooth function and is found the pedestal mating with it and carry out data transmission.Those skilled in the art can change and more embodiment in conjunction with prior art, do not repeat them here.
Particularly, it will be appreciated by those skilled in the art that when described barcode scanner inserts described pedestal and charges, first carry out the reason of matching addresses.Preferably, before described barcode scanner inserts described pedestal and charges, described barcode scanner communicates with described pedestal, and existing a series of communication and through relative set.Provide the described pedestal of described barcode scanner charging if the pedestal having matched before charging, so described barcode scanner does not need to carry out relevant setting to described pedestal again.For example, before charging, when described barcode scanner sends bar code to described pedestal, ask described pedestal to reply relevant information, described relevant information preferably includes, Item Title, type of items, article price etc., in the time of charging, when described barcode scanner sends bar code to described pedestal, described pedestal is replied similarly relevant information before charging.One at the present embodiment changes in example, described barcode scanner does not match with any pedestal before filling a little, described barcode scanner inserts after pedestal, first the communication carrying out is home control network communication protocol, the wireless information transfer when matching by described barcode scanner and described pedestal to completing described barcode scanner charging.
Fig. 4 illustrates according to the first embodiment of the present invention, the process flow diagram of the pedestal of the application of pin multiplexing technology in lithium cell charging.Particularly, those skilled in the art understand in the time that barcode scanner demonstration need to be charged, and barcode scanner is inserted to pedestal, and the microcontroller of described pedestal judges that whether connection is successful, when some hardware damage or termination contact wrong, judgement " connection failure "; As be judged as " successful connection ", give tacit consent to described change-over switch because of original state and be connected to described communication device, pedestal is received the address information from barcode scanner by information terminal and communication device, and described address information comprises described barcode scanner address and described pedestal address.The microcontroller of described pedestal judges connection attribute, whether sending/receiving is complete to judge data, if it is not complete to be judged as sending/receiving, continue sending/receiving data, as complete in sending/receiving, the microcontroller of described pedestal judge the pedestal address that receives whether with self pedestal matching addresses, if do not mated, pedestal shows " pedestal does not mate with scanner "; If the match is successful, the microcontroller of described pedestal will generate the identifying code of transmission information thereafter, and identifying code and barcode scanner address are returned to barcode scanner by described communication device and information terminal.Described pedestal microcontroller is sent to described pedestal logical circuit using this connection attribute as signal, described signal is through logical conversion, control change-over switch described to external power source from described communicator switching, now described information terminal switches to external power source lead-out terminal, realizes the multiplexing of pin.
Fig. 5 illustrates according to the first embodiment of the present invention, the process flow diagram of the barcode scanner of the application of pin multiplexing technology in lithium cell charging.Particularly, those skilled in the art understand in the time that barcode scanner demonstration need to be charged, and barcode scanner is inserted to pedestal, and the microcontroller of described barcode scanner judges that whether connection is successful, when some hardware damage or termination contact wrong, judgement " connection failure "; As be judged as " successful connection ", because giving tacit consent to initial change-over switch link information terminal and described communicator, barcode scanner sends address information by information terminal and communication device to described pedestal, and described address information comprises described barcode scanner address and described pedestal address.Now, the microcontroller of described pedestal judges connection attribute, whether sending/receiving is complete to judge data, if it is not complete to be judged as sending/receiving, continue sending/receiving data, as complete in sending/receiving, described barcode scanner receives address and the identifying code from the described barcode scanner of described pedestal, the microcontroller of described barcode scanner judge the barcode scanner address that receives whether with self barcode scanner matching addresses, and the described identifying code receiving is verified, if do not mated, pedestal shows " pedestal does not mate with scanner ", if the match is successful, described barcode scanner microcontroller is sent to the logical circuit of described barcode scanner using this connection attribute as signal, described signal is through logical conversion, control change-over switch and be connected to Blast Furnace Top Gas Recovery Turbine Unit (TRT) from described communicator, now described information terminal switches to external power source input terminal.Because initial default Blast Furnace Top Gas Recovery Turbine Unit (TRT) is connected with charging device,, before logical circuit change-over switch, barcode scanner uses lithium battery power supply; After logical circuit switches, use external power source.Finally to realize the pin multiplexing in lithium cell charging.
In conjunction with above-mentioned Fig. 1 to Fig. 5, the application of the said pin multiplexing technology providing of the present invention program in lithium cell charging is not limited in the charging of barcode scanner, and what its technical scheme can be used for other handheld devices that need carry out wireless information transfer and charging pedestal is connected charging.Particularly, do not repeat them here.
With reference to above-mentioned Fig. 1 to Fig. 5, it will be appreciated by those skilled in the art that the wireless version of barcode scanner, passes through lithium battery power supply conventionally at present.Due to mechanism size restriction, the charge connector of lithium battery has 4 pins conventionally.Respectively to discharge and recharge terminal, external power terminal, monitoring temperature terminal and ground.This programme is by multiplexing external power terminal, as signal terminal, for communication.In the time that barcode scanner is put into pedestal, scanner can transmit link address by signal terminal, carries out wireless connections.In order to improve the convenience of wireless connections, this programme has proposed the multiplexing scheme of external power terminal and signal terminal, has guaranteed the reliable and secure row of lithium cell charging, and the convenience of bar-code scanner and the direct wireless connections of pedestal is provided again.
Conventionally,, due to the mechanism size restriction of bar-code scanner, 4 pin connectors are used to scanner external interface.It is used to lithium cell charging and provides external power source to supply with bar-code scanner work itself.Guaranteed that like this battery is in the time of charging, bar-code scanner can work on, and does not affect battery charging and battery life simultaneously.To provide bidirectional transfer of information at the design's peripheral power supply terminal.When bar-code scanner is put into pedestal, relevant configuration and link information are transmitted by this root information terminal.Complete when communication, external power terminal will be switched.Access bar-code scanner is provided extra electric energy by external power source, supports it to work on, and lithium cell charging circulation is not destroyed.
Above specific embodiments of the invention are described.It will be appreciated that, the present invention is not limited to above-mentioned specific implementations, and those skilled in the art can make various distortion or modification within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (5)
1. the barcode scanner based on pin multiplexing, described barcode scanner preferably adopts lithium battery, and described barcode scanner and one can adapt for the pedestal of described lithium cell charging, described barcode scanner and described pedestal charge or data transmission by first information terminal, it is characterized in that, described barcode scanner comprises:
First microprocessor, it is for to processing from outside data;
The first logical circuit, described logical circuit is used for judging that controlling described first information terminal enters charged state or data transmission state;
The first communication device, it is for carrying out communication with outside;
First discharges and recharges terminal, and it is for the charging of described barcode scanner;
The first ground terminal, it prevents electric leakage, electrostatic damage element for safeguard protection is provided;
The first monitoring temperature terminal, its temperature control during for charging and discharging lithium battery;
First information terminal, it is for transmission information;
The first change-over switch, described the first change-over switch is electrically connected with described the first logical circuit, and one end of described the first change-over switch is connected with described first information terminal, the other end of described the first change-over switch can be connected with described the first communication device and also can be connected with an external power source connecting line, and the described other end of described the first change-over switch switches between described the first communication device and described external power source connecting line according to the control signal of described the first logical circuit.
2. the pedestal based on pin multiplexing, described pedestal connects external power source, and described pedestal and barcode scanner claimed in claim 1 adapt, described pedestal and described barcode scanner charge or data transmission to described barcode scanner by secondary signal terminal, it is characterized in that, described pedestal comprises:
The second microprocessor, it is for to processing from outside data;
The second logical circuit, described logical circuit is used for judging that controlling described secondary signal terminal enters charged state or data transmission state;
The second communication device, it is for carrying out communication with described barcode scanner;
Second discharges and recharges terminal, and it is for the charging of described barcode scanner;
The second ground terminal, it prevents electric leakage, electrostatic damage element for safeguard protection is provided;
The second monitoring temperature terminal, its temperature control during for charging and discharging lithium battery;
The second information terminal, it charges for transmission information or to controlling described barcode scanner;
One charging device, it is variable DC voltage for changing fixing DC voltage, and its one end and described second discharges and recharges terminal and is connected, and the other end is connected with described the 3rd change-over switch;
One electric power controller, its for the power supply that receives lithium battery or external power source and provide to provide electric power to described barcode scanner;
The second change-over switch, described the second change-over switch is electrically connected with described the second logical circuit, and one end of described the second change-over switch is connected with described information terminal, the other end of described the second change-over switch can be connected with described communication device and also can be connected with the 3rd change-over switch, and the described other end of described the second change-over switch switches between described communication device and described the 3rd change-over switch according to the control signal of described the second logical circuit;
The 3rd change-over switch, described the 3rd change-over switch is electrically connected with described the second logical circuit, and one end of described the 3rd change-over switch is connected with described electric power controller, the other end of described the 3rd change-over switch can be connected with the other end of described the second change-over switch and also can be connected with described charging device, and the described other end of described the 3rd change-over switch switches between the other end of described the second change-over switch and described charging device according to the control signal of described the second logical circuit.
3. a control method of by pin multiplexing technology, described barcode scanner being charged in barcode scanner according to claim 1 and pedestal claimed in claim 2, it controls the secondary signal terminal of described pedestal and the first signal terminal of described barcode scanner charges or data transmission to described barcode scanner, it is characterized in that, comprise the steps:
A. put into after described pedestal at described barcode scanner, judge whether both have set up data and connected;
If b. described barcode scanner has been set up data with described pedestal and is connected, further whether judgement data transmission is between the two complete;
If c. described data transmission is complete, further judge whether the address of described barcode scanner and the address of described pedestal mate;
If the d. address of described barcode scanner and the matching addresses of described pedestal, the first change-over switch described in the first logical circuit control of described barcode scanner, make described first signal terminal carry out charged state, the second change-over switch described in the second logical circuit control of described pedestal, makes described secondary signal terminal carry out charged state.
4. control method according to claim 3, is characterized in that, after described step b, also comprises the steps:
If e. described data transmission is not complete, continues to transmit data between described barcode scanner and described pedestal, and continue to carry out described step b.
5. according to the control method described in claim 3 or 4, it is characterized in that, after described step c, also comprise the steps:
If f. does not mate the address of described barcode scanner and the address of described pedestal, the first change-over switch described in the first logical circuit control of described barcode scanner, make described first signal terminal keep data transmission state, the second change-over switch described in the second logical circuit control of described pedestal, make described secondary signal terminal keep data transmission state, and described barcode scanner is used for to described pedestal transmission the solicited message connecting.
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| CN201210456104.4A CN103810453A (en) | 2012-11-14 | 2012-11-14 | Bar code scanner and base based on pin reuse |
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| CN201210456104.4A CN103810453A (en) | 2012-11-14 | 2012-11-14 | Bar code scanner and base based on pin reuse |
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Application publication date: 20140521 |