Wireless code reader

Abstract

The utility model provides a wireless code reader, which includes: a collection module, a power supply module, a control module and a mobile communication module; the power supply module is electrically connected to the collection module, the control module and the mobile communication module respectively, the collection module is electrically connected to the control module, and the control module is electrically connected to the mobile communication module; the control module processes the data collected by the collection module and sends wireless signals to the outside through the mobile communication module and receives wireless signals from the outside, and the mobile communication module sends and receives wireless signals through the mobile network; the mobile communication module includes: a user identification unit; a SIM card slot is provided on the user identification unit, and the user identification unit provides a mobile network to the mobile communication module when a SIM card is installed through the SIM card slot. The utility model can realize long-distance data transmission.

Description

Technical Field

[0001] The utility model relates to the technical field of code readers, in particular to a wireless code reader. Background Art

[0002] Currently, wireless code readers on the market use Bluetooth for communication, but the transmission distance of Bluetooth is short and can only be connected to electronic devices with Bluetooth function (also called Bluetooth devices) within 1-100 meters.

[0003] Specifically, when the user turns on the Bluetooth function on the barcode reader, the Bluetooth module of the barcode reader will automatically start and start working. The Bluetooth antenna in the Bluetooth module will transmit a broadcast signal and scan the surrounding Bluetooth devices. The broadcast signal contains the barcode reader's unique identifier MAC address, device name, device type, supported functions and other information.

[0004] The range of broadcast signals emitted by existing electronic devices is usually between 10-20 meters. After scanning and selecting the required Bluetooth device to be connected, the two Bluetooth devices begin to pair. After the pairing is successful, the two Bluetooth devices can transmit data to each other.

[0005] This shows that the existing code readers have the problem of short data transmission distance. Utility Model Content

[0006] In order to solve the above problems, the wireless code reader provided by the utility model transmits and receives wireless signals via a mobile communication module with the help of a mobile network, and can transmit data over a long distance.

[0007] The utility model provides a wireless code reader, which includes: a collection module, a power supply module, a control module and a mobile communication module;

[0008] The power supply module is electrically connected to the acquisition module, the control module and the mobile communication module respectively, the acquisition module is electrically connected to the control module, and the control module is electrically connected to the mobile communication module;

[0009] The control module processes the data collected by the collection module and sends wireless signals to the outside and receives wireless signals from the outside through the mobile communication module. The mobile communication module sends and receives wireless signals through the mobile network;

[0010] The mobile communication module comprises: a user identification unit; a SIM card slot is arranged on the user identification unit, and the user identification unit provides a mobile network to the mobile communication module when a SIM card is installed through the SIM card slot.

[0011] Optionally, the mobile communication module further includes: a communication unit and a transmission unit;

[0012] The communication unit is electrically connected to the control module, and the transmission unit and the user identification unit are both electrically connected to the communication unit;

[0013] The subscriber identification unit provides the mobile network to the communication unit when a SIM card is installed through the SIM card slot;

[0014] After the communication unit is registered to the mobile network through the SIM card, the wireless signal is sent and received through the transmission unit.

[0015] Optionally, a clock pin, an input / output pin, and a reset pin of the SIM card slot are respectively connected to a capacitor and an electrostatic release device, and both the capacitor and the electrostatic release device are grounded;

[0016] The clock pin of the SIM card slot is electrically connected to the clock pin of the communication unit through a reserved resistor, the input and output pins of the SIM card slot are electrically connected to the input and output pins of the communication unit through another reserved resistor, and the input and output pins and the erase voltage pin of the SIM card slot are electrically connected to the power supply end of the communication unit through a voltage-stabilizing resistor respectively.

[0017] Optionally, the mobile communication module further includes: a status indication unit;

[0018] The status indication unit is electrically connected to the communication unit, and is used to indicate whether the communication unit is registered with the mobile network, and whether the communication unit is sending and receiving wireless signals.

[0019] Optionally, the wireless code reader further includes: an isolation module;

[0020] The control module is electrically connected to the mobile communication module through the isolation module, and the isolation module provides a first data transmission circuit and a second data transmission circuit separated from each other;

[0021] The control module transmits data to the mobile communication module through the first data transmission circuit, and the mobile communication module transmits data to the control module through the second data transmission circuit.

[0022] Optionally, the first data transmission circuit includes: a first regulating switch, a first resistor, a second resistor, a third resistor and a fourth resistor;

[0023] A conducting end of the first regulating switch is electrically connected to one end of the first resistor, the other end of the first resistor is electrically connected to the control module, the other conducting end of the first regulating switch is electrically connected to one end of the second resistor, the other end of the second resistor is electrically connected to the mobile communication module, the control end of the first regulating switch is electrically connected to one end of the third resistor, the other end of the third resistor is electrically connected to the first voltage output end, one end of the fourth resistor is electrically connected to the other end of the third resistor, and the other end of the fourth resistor is electrically connected to the other end of the second resistor;

[0024] When one conductive end of the first regulating switch receives a high level sent by the control module, the control end of the first regulating switch controls the one conductive end of the first regulating switch and the other conductive end of the first regulating switch to remain disconnected, and the first voltage output end outputs a high level to the mobile communication module through the fourth resistor;

[0025] When one conductive end of the first regulating switch receives a low level sent by the control module, the control end of the first regulating switch controls the one conductive end of the first regulating switch and the other conductive end of the first regulating switch to maintain a conductive state.

[0026] Optionally, the second data transmission circuit includes: a second regulating switch, a fifth resistor, a sixth resistor, a seventh resistor and an eighth resistor;

[0027] One conducting end of the second regulating switch is electrically connected to one end of the fifth resistor, the other end of the fifth resistor is electrically connected to the control module, the other conducting end of the second regulating switch is electrically connected to one end of the sixth resistor, the other end of the sixth resistor is electrically connected to the mobile communication module, the control end of the second regulating switch is electrically connected to one end of the seventh resistor, the other end of the seventh resistor is electrically connected to the second voltage output end, one end of the eighth resistor is electrically connected to the other end of the seventh resistor, and the other end of the eighth resistor is electrically connected to one end of the fifth resistor;

[0028] When the other conductive end of the second regulating switch receives a high level sent by the control module, the control end of the second regulating switch controls one conductive end of the second regulating switch and the other conductive end of the second regulating switch to remain disconnected, and the second voltage output end outputs a high level to the control module through the eighth resistor;

[0029] When the other conducting end of the second regulating switch receives the low level sent by the mobile communication module, the control end of the second regulating switch controls one conducting end of the second regulating switch and the other conducting end of the second regulating switch to maintain a conducting state.

[0030] Optionally, the power supply module includes: a battery power supply unit and a voltage conversion unit;

[0031] The battery power supply unit is electrically connected to the voltage conversion unit, and the voltage conversion unit is electrically connected to the acquisition module, the control module and the mobile communication module respectively. The voltage conversion unit is used to convert the voltage provided by the battery power supply unit into a voltage suitable for the acquisition module, the control module and the mobile communication module to work.

[0032] Optionally, the voltage conversion unit includes: a primary conversion subunit and a secondary conversion subunit;

[0033] The input end of the primary conversion subunit is electrically connected to the battery power supply unit, the output end of the primary conversion subunit is electrically connected to the secondary conversion subunit and the mobile communication module respectively, and the secondary conversion subunit is electrically connected to the control module and the acquisition module;

[0034] The battery power supply unit outputs a voltage of 12V, the primary conversion subunit is used to convert the voltage of 12V into a voltage of 4V, and the secondary conversion subunit is used to convert the voltage of 4V into a voltage of 3.3V.

[0035] Optionally, the wireless code reader further includes: a burning module;

[0036] The burning module is electrically connected to the control module, and is used to burn codes into the control module.

[0037] The wireless code reader provided by the embodiment of the utility model connects the acquisition module with the control module, and the control module with the mobile communication module, so that the control module can process the data collected by the acquisition module, and then send wireless signals to the outside and receive wireless signals from the outside through the mobile communication module with the help of the mobile network, thereby realizing long-distance data transmission of the wireless code reader. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0039] Figure 1 A schematic circuit diagram of a wireless code reader according to an embodiment of the present application;

[0040] Figure 2 A schematic circuit diagram of a battery power supply unit according to an embodiment of the present application;

[0041] Figure 3 A schematic circuit diagram of a primary conversion subunit according to an embodiment of the present application;

[0042] Figure 4 A schematic circuit diagram of a secondary conversion subunit according to an embodiment of the present application;

[0043] Figure 5 A schematic circuit diagram of a portion of a mobile communication module according to an embodiment of the present application;

[0044] Figure 6 A schematic circuit diagram of a part of a control module according to an embodiment of the present application;

[0045] Figure 7A schematic circuit diagram of a user identification unit according to an embodiment of the present application;

[0046] Figure 8 A schematic circuit diagram of a status indication unit according to an embodiment of the present application;

[0047] Fig. 9 is a schematic circuit diagram of a data transmission circuit according to an embodiment of the present application;

[0048] Fig.10 is a schematic circuit diagram of a second data transmission circuit according to an embodiment of the present application;

[0049] Fig.11 A schematic circuit diagram of a collection module according to an embodiment of the present application;

[0050] Fig.12 FIG. 1 is a schematic circuit diagram of a programming module according to an embodiment of the present application. DETAILED DESCRIPTION

[0051] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0052] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0053] It should also be understood that the terms “include / comprises” or “having” and the like specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0054] This embodiment provides a wireless code reader. Figure 1 The wireless code reader includes: an acquisition module 1, a power supply module 2, a control module 3 and a mobile communication module 5. The acquisition module 1 can be connected to a camera or a sensor to acquire data, and send the acquired analog signal to the control module 3, so that the control module 3 converts the analog signal into a digital signal and performs relevant processing on the digital signal; the mobile communication module 5 can be a 4G (fourth generation mobile communication technology) module or a 5G (fifth generation mobile communication technology) module. In this embodiment, the mobile communication module 5 can be a 4G module as an example.

[0055] The power supply module 2 is electrically connected to the acquisition module 1 , the control module 3 and the mobile communication module 5 respectively; the acquisition module 1 is electrically connected to the control module 3 , and the control module 3 is electrically connected to the mobile communication module 5 .

[0056] The control module 3 processes the data collected by the acquisition module 1 and sends wireless signals to the outside and receives wireless signals from the outside through the mobile communication module 5. The mobile communication module 5 sends and receives wireless signals through the mobile network. The power supply module 2 provides a 12V voltage to power other modules in the wireless code reader.

[0057] The mobile communication module 5 includes a user identification unit 53, and a SIM (Subscriber Identity Module) card slot is provided on the user identification unit 53. When a SIM card is installed in the SIM card slot, the user identification unit 53 provides a mobile network to the mobile communication module 5.

[0058] The wireless code reader connects the acquisition module 1 with the control module 3, and the control module 3 with the mobile communication module 5, so that the control module 3 can process the data collected by the acquisition module 1, and then send wireless signals to the outside and receive wireless signals from the outside through the mobile communication module 5 with the help of the mobile network, thereby realizing long-distance data transmission of the wireless code reader.

[0059] Furthermore, the power supply module 2 includes: a battery power supply unit 21 and a voltage conversion unit 22 .

[0060] The battery power supply unit 21 is electrically connected to the voltage conversion unit 22, and the voltage conversion unit 22 is electrically connected to the acquisition module 1, the control module 3 and the mobile communication module 5. The voltage conversion unit 22 is used to convert the voltage provided by the battery power supply unit 21 into a voltage suitable for the acquisition module 1, the control module 3 and the mobile communication module 5 to work.

[0061] In this embodiment, the voltage conversion unit 22 includes: a primary conversion sub-unit 221 and a secondary conversion sub-unit 222 .

[0062] The input end of the primary conversion subunit 221 is electrically connected to the battery power supply unit 21, the output end of the primary conversion subunit 221 is electrically connected to the secondary conversion subunit 222 and the mobile communication module 5 respectively, and the secondary conversion subunit 222 is electrically connected to the control module 3. The acquisition module 1 is electrically connected to the secondary conversion subunit 222 through the control module 3.

[0063] The battery power supply unit 21 outputs a voltage of 12V, the primary conversion subunit 221 is used to convert the voltage of 12V into a voltage of 4V, and the secondary conversion subunit 222 is used to convert the voltage of 4V into a voltage of 3.3V.

[0064] In this embodiment, combined with Figure 2 and Figure 3 , the first pin of the battery socket J1 in the battery power supply unit 21 outputs a 12V voltage and is electrically connected to the fifth pin of the primary conversion subunit 221; combined Figure 4 , Figure 5 and Figure 6 The 6th pin of the primary conversion subunit 221 outputs a 4V voltage and is electrically connected to the 20th pin on the communication chip U7 in the mobile network module and the 5th pin of the secondary conversion subunit 222 respectively. The 5th pin of the secondary conversion subunit 222 outputs a 3.3V voltage and is electrically connected to multiple pins on the MCU U4 in the control module 3, including the 8th pin, the 9th pin, the 13th pin and the 14th pin of the MCU.

[0065] Combination Figure 5 and Figure 7 The mobile communication module 5 includes: a communication unit 51 and a transmission unit 52. The communication unit 51 is electrically connected to the control module 3, and the transmission unit 52 and the user identification unit 53 are both electrically connected to the communication unit 51. The communication unit 51 includes a communication chip U7, and the transmission unit 52 includes an antenna interface J4, and the first pin of the antenna interface is electrically connected to the 49th pin of the communication chip.

[0066] The user identification unit 53 provides the mobile network to the communication unit 51 when the SIM card is installed through the SIM card slot. After the communication unit 51 registers with the mobile network through the SIM card, the transmission unit 52 transmits and receives wireless signals.

[0067] It is understandable that after the SIM card is inserted into the SIM card slot, the user identification unit 53 provides the communication unit 51 with an identity code for communicating with an external operator, and the external operator can provide a mobile network to the communication unit 51 through the identity code. This embodiment only installs a SIM card in the communication module to provide a mobile network to the communication unit 51. The specific method of implementing data transmission can be achieved through existing technologies, and this practical information does not involve improvements to computer programs.

[0068] Specifically, the clock pin, input / output pin and reset pin of the SIM card slot are respectively connected to capacitors C31, C26, C25 and electrostatic discharge (ESD) devices D4, D3, D2, and the above capacitors and electrostatic release devices are all grounded; the power access pin of the SIM card slot is connected to a capacitor C32 with one end grounded.

[0069] The clock pin of the SIM card slot is electrically connected to the clock pin of the communication unit 51 through a reserved resistor R23, the input and output pins of the SIM card slot are electrically connected to the input and output pins of the communication unit 51 through another reserved resistor R24, the input and output pins and the erase voltage pin of the SIM card slot are electrically connected to the power supply end of the communication unit 51 through a voltage-stabilizing resistor R20 and R19 respectively, and the power access pin of the SIM card slot is electrically connected to the power supply end of the communication unit 51.

[0070] By providing an electrostatic discharge device in the user identification unit 53, the static electricity generated after the SIM card is inserted can be effectively used to damage the device. By providing a capacitor in the user identification unit 53, the noise on the power supply and signal between the communication unit 51 and the user identification unit 53 can be filtered out. The resistance value of the reserved resistor is adjustable to serve as a matching resistor in the circuit, and the stability of the signal in the circuit can be ensured by providing a voltage stabilizing resistor.

[0071] After the communication unit 51 sends and receives data through the RXD pin (pin 68) and the TXD pin (pin 67), it is connected to the first pin of the transmission unit 52J4 device through the ANT_MAIN pin (pin 49) of the communication unit 51. The transmission unit 52 can convert the passing electrical signal into a wireless signal to realize the radiation and reception of the radio signal. As long as the device SIM card is not shut down, data can be received or sent remotely through a smartphone. In this embodiment, the transmission unit 52 is an antenna.

[0072] In an optional embodiment, in combination Figure 1 and Figure 8 The mobile communication module 5 further includes a status indicating unit 54. The status indicating unit 54 is electrically connected to the communication unit 51, and is used to indicate whether the communication unit 51 is registered to the mobile network, and whether the communication unit 51 is sending and receiving wireless signals.

[0073] One end of the state indicating unit 54 is electrically connected to the sixth pin of the communication unit 51 , and the other end of the state indicating unit 54 is electrically connected to the output end of the first-stage conversion subunit 221 .

[0074] Specifically, when the communication unit 51 is not operating, the light in the status indication unit 54 is off; when the light in the status indication unit 54 is alternately on for 64ms and off for 800ms, it indicates that the communication unit 51 is not registered with the network; when the light in the status indication unit 54 is alternately on for 64ms and off for 2000ms, it indicates that the communication unit 51 is registered with the mobile network. When the light in the status indication unit 54 is alternately on for 64ms and off for 600ms, it indicates that the communication unit 51 is performing data transmission communication.

[0075] Combination Figure 1 The wireless code reader further includes: an isolation module 4 and a burning module 6. The control module 3 is electrically connected to the mobile communication module 5 through the isolation module 4, and the isolation module 4 provides a first data transmission circuit and a second data transmission circuit separated from each other. The control module 3 transmits data to the mobile communication module 5 through the first data transmission circuit, and the mobile communication module 5 transmits data to the control module 3 through the second data transmission circuit. The burning module 6 is electrically connected to the control module 3, and the burning module 6 is used to burn the code to the control module 3.

[0076] Specific, combined Fig. 9 The first data transmission circuit includes: a first regulating switch Q2, a first resistor R42, a second resistor R43, a third resistor R39 and a fourth resistor R41. The first regulating switch can be a triode or a transistor, etc. The first resistor R42 and the second resistor R43 are matching resistors, and their resistance values ​​are adjustable.

[0077] One conductive end of the first regulating switch is electrically connected to one end of the first resistor, the other end of the first resistor is electrically connected to the control module 3, the other conductive end of the first regulating switch is electrically connected to one end of the second resistor, the other end of the second resistor is electrically connected to the mobile communication module 5, the control end of the first regulating switch is electrically connected to one end of the third resistor, the other end of the third resistor is electrically connected to the first voltage output end, one end of the fourth resistor is electrically connected to the other end of the third resistor, and the other end of the fourth resistor is electrically connected to the other end of the second resistor.

[0078] When one conductive end of the first regulating switch receives a high level sent by the control module 3, the control end of the first regulating switch controls one conductive end of the first regulating switch and another conductive end of the first regulating switch to remain disconnected, and the first voltage output end outputs a high level to the mobile communication module 5 through the fourth resistor. The first voltage output end may be a voltage output end on the power supply module 2, or a voltage output end on the communication unit 51, but is not limited thereto.

[0079] When one conductive end of the first regulating switch receives a low level sent by the control module 3 , the control end of the first regulating switch controls one conductive end of the first regulating switch and another conductive end of the first regulating switch to maintain a conductive state.

[0080] In this embodiment, the first regulating switch is a triode, wherein one conducting end of the first regulating switch is an emitter, the other conducting end of the first regulating switch is a collector, and the control end of the first regulating switch is a base; and the resistance values ​​of the first resistor and the second resistor are 0.

[0081] In an optional embodiment, the first data transmission circuit further includes a first capacitor C49. One end of the first capacitor is electrically connected to one end of the third resistor, and the other end of the first capacitor is electrically connected to the other end of the third resistor. By setting the first capacitor, the conduction speed of the third resistor can be accelerated, thereby accelerating the response time of the first data transmission circuit.

[0082] Combination Fig.10 The second data transmission circuit includes: a second regulating switch Q3, a fifth resistor R44, a sixth resistor R45, a seventh resistor R38 and an eighth resistor R4. The second regulating switch can be a triode or a transistor, etc. The fifth resistor and the sixth resistor are matching resistors, and their resistance values ​​are adjustable.

[0083] One conductive end of the second regulating switch is electrically connected to one end of the fifth resistor, the other end of the fifth resistor is electrically connected to the control module 3, the other conductive end of the second regulating switch is electrically connected to one end of the sixth resistor, the other end of the sixth resistor is electrically connected to the mobile communication module 5, the control end of the second regulating switch is electrically connected to one end of the seventh resistor, the other end of the seventh resistor is electrically connected to the second voltage output end, one end of the eighth resistor is electrically connected to the other end of the seventh resistor, and the other end of the eighth resistor is electrically connected to one end of the fifth resistor.

[0084] When the other conductive end of the second regulating switch receives the high level sent by the control module 3, the control end of the second regulating switch controls the one conductive end of the second regulating switch and the other conductive end of the second regulating switch to remain disconnected, and the second voltage output end outputs the high level to the control module 3 through the eighth resistor. The second voltage output end may be a voltage output end on the power supply module 2, or a voltage output end on the communication unit 51, but is not limited thereto.

[0085] When the other conducting end of the second regulating switch receives the low level sent by the mobile communication module 5 , the control end of the second regulating switch controls one conducting end of the second regulating switch and the other conducting end of the second regulating switch to maintain a conducting state.

[0086] In this embodiment, the second regulating switch is a triode; the first voltage output terminal and the second voltage output terminal are the same voltage output terminal VDD_EXT on the communication unit 51. Among them, the other conducting end of the second regulating switch is the emitter, the one conducting end of the second regulating switch is the collector, and the control end of the second regulating switch is the base; the resistance values ​​of the fifth resistor and the sixth resistor are 0.

[0087] Specifically, the collection unit is connected to an external sensor device to collect data. Figure 6 and Fig.11The J7 socket of the acquisition unit is a 4-pin, 2.54mm socket. The first pin of the acquisition unit powers the external sensor. The second and third pins of the acquisition unit are the MCU_SDA1 pin and the MCU_SCL1 pin, respectively, for data transmission between the external sensor and the control module 3. The fourth pin of the acquisition unit is the ground, providing a return path for the power pin and signal pin on it. The MCU_SDA1 pin and the MCU_SCL1 pin of the acquisition unit are connected to the P3.3 pin (pin 14) and the P3.2 pin (pin 13) of the control module 3, respectively. The resistors R21 and R22 on the control module 3 are connected in parallel with the MCU_SDA1 pin and the MCU_SCL1 pin of the acquisition unit, respectively, and pull them up to MCU_3V3, so as to ensure that the bus line remains at a high level when idle.

[0088] In this embodiment, the control module 3 is composed of a microcontroller (MCU). Figure 6 and Fig.12 , the P3.1 pin (pin 12) and P3.0 pin (pin 11) of the control module 3 are connected to the 2nd and 1st pins of the burner J2 in the burning unit through a series resistor to burn the program into the control module 3 so that the device can work normally. Figure 6 , Fig. 9 and Fig.10 , the TXD2 pin (pin 20) and RXD2 pin (pin 19) of the control module 3 are connected to R42 and R44 of the isolation unit respectively. The isolation unit can separate the control module 3 from the communication unit to prevent interference between the high-frequency signal of the communication unit and the signal of the control module 3, making the entire system unstable. When the P1.1 pin of the control module 3 sends a high level, the base and emitter of Q2 are not conducting, the collector and emitter of Q2 are not conducting, and VDD_EXT is connected to the RXD pin of the communication unit 51 through the resistor R41. When the P1.1 of the control module 3 sends a low level, the emitter and collector of Q2 are conducting, and the control module 3 outputs a low level to the RXD pin of the communication unit 51. When the TXD pin of the communication unit 51 sends a high level, the base and emitter of Q3 are not conducting, the emitter and collector of Q3 are not conducting, and VDD_EXT outputs a high level to the control module 3 through R4. When the TXD pin of the communication unit 51 sends a low level, the base and emitter of Q3 are turned on, the emitter and collector of Q3 are turned on, and VDD_EXT outputs a low level to the control module 3 through R4.

[0089] Among them, the RXD_MOUDLE pin and the TXD_MOUDLE pin of the isolation unit are connected to the RXD pin (pin 68) and the TXD pin (pin 67) of the communication unit 51. The RXD pin of the communication unit receives the signal sent from the TXD2 pin of the control unit after passing through the isolation unit. The TXD pin of the communication unit sends the signal to the RXD2 pin of the control unit after passing through the isolation unit to receive the data.

[0090] In an optional embodiment, the second data transmission circuit further includes a second capacitor C48. One end of the second capacitor is electrically connected to one end of the seventh resistor, and the other end of the second capacitor is electrically connected to the other end of the seventh resistor. By setting the second capacitor, the conduction speed of the seventh resistor can be accelerated, thereby accelerating the response time of the second data transmission circuit.

[0091] The wireless code reader provided by the utility model can not only realize remote wireless communication, but also can be controlled in any place with network without the presence of operators. In addition, the wireless code reader can transmit data without relying on signal lines, thus reducing the cost of communication.

[0092] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", "ideal embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0093] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0094] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A wireless code reader, characterized in that: The wireless code reader includes: a collection module, a power supply module, a control module and a mobile communication module; The power supply module is electrically connected to the acquisition module, the control module and the mobile communication module respectively, the acquisition module is electrically connected to the control module, and the control module is electrically connected to the mobile communication module; The control module processes the data collected by the collection module and sends wireless signals to the outside and receives wireless signals from the outside through the mobile communication module. The mobile communication module sends and receives wireless signals through the mobile network; The mobile communication module comprises: a user identification unit; a SIM card slot is arranged on the user identification unit, and the user identification unit provides the mobile network to the mobile communication module when a SIM card is installed through the SIM card slot.

2. The wireless code reader according to claim 1, characterized in that: The mobile communication module includes: a communication unit and a transmission unit; The communication unit is electrically connected to the control module, and the transmission unit and the user identification unit are both electrically connected to the communication unit; The user identification unit provides the mobile network to the communication unit when a SIM card is installed through the SIM card slot; after the communication unit registers to the mobile network through the SIM card, the communication unit sends and receives wireless signals through the transmission unit.

3. The wireless code reader according to claim 2, characterized in that: The clock pin, input / output pin and reset pin of the SIM card slot are respectively connected to a capacitor and an electrostatic release device, and the capacitor and the electrostatic release device are both grounded; The clock pin of the SIM card slot is electrically connected to the clock pin of the communication unit through a reserved resistor, the input and output pins of the SIM card slot are electrically connected to the input and output pins of the communication unit through another reserved resistor, and the input and output pins and the erase voltage pin of the SIM card slot are electrically connected to the power supply end of the communication unit through a voltage-stabilizing resistor respectively.

4. The wireless code reader according to claim 2, characterized in that: The mobile communication module further includes: a status indication unit; The status indication unit is electrically connected to the communication unit, and is used to indicate whether the communication unit is registered with the mobile network, and whether the communication unit is sending and receiving wireless signals.

5. The wireless code reader according to claim 1, characterized in that: The wireless code reader further includes: an isolation module; The control module is electrically connected to the mobile communication module through the isolation module, and the isolation module provides a first data transmission circuit and a second data transmission circuit separated from each other; The control module transmits data to the mobile communication module through the first data transmission circuit, and the mobile communication module transmits data to the control module through the second data transmission circuit.

6. The wireless code reader according to claim 5, characterized in that: The first data transmission circuit includes: a first regulating switch, a first resistor, a second resistor, a third resistor and a fourth resistor; One conducting end of the first regulating switch is electrically connected to one end of the first resistor, the other end of the first resistor is electrically connected to the control module, the other conducting end of the first regulating switch is electrically connected to one end of the second resistor, the other end of the second resistor is electrically connected to the mobile communication module, the control end of the first regulating switch is electrically connected to one end of the third resistor, the other end of the third resistor is electrically connected to the first voltage output end, one end of the fourth resistor is electrically connected to the other end of the third resistor, and the other end of the fourth resistor is electrically connected to the other end of the second resistor; When one conductive end of the first regulating switch receives a high level sent by the control module, the control end of the first regulating switch controls the one conductive end of the first regulating switch and the other conductive end of the first regulating switch to remain disconnected, and the first voltage output end outputs a high level to the mobile communication module through the fourth resistor; When one conductive end of the first regulating switch receives a low level sent by the control module, the control end of the first regulating switch controls one conductive end of the first regulating switch and another conductive end of the first regulating switch to maintain a conductive state.

7. The wireless code reader according to claim 5, characterized in that: The second data transmission circuit includes: a second regulating switch, a fifth resistor, a sixth resistor, a seventh resistor and an eighth resistor; One conducting end of the second regulating switch is electrically connected to one end of the fifth resistor, the other end of the fifth resistor is electrically connected to the control module, the other conducting end of the second regulating switch is electrically connected to one end of the sixth resistor, the other end of the sixth resistor is electrically connected to the mobile communication module, the control end of the second regulating switch is electrically connected to one end of the seventh resistor, the other end of the seventh resistor is electrically connected to the second voltage output end, one end of the eighth resistor is electrically connected to the other end of the seventh resistor, and the other end of the eighth resistor is electrically connected to one end of the fifth resistor; When the other conductive end of the second regulating switch receives a high level sent by the control module, the control end of the second regulating switch controls one conductive end of the second regulating switch and the other conductive end of the second regulating switch to remain disconnected, and the second voltage output end outputs a high level to the control module through the eighth resistor; When the other conductive end of the second regulating switch receives the low level sent by the mobile communication module, the control end of the second regulating switch controls one conductive end of the second regulating switch and the other conductive end of the second regulating switch to maintain a conductive state.

8. The wireless code reader according to claim 1, characterized in that: The power supply module includes: a battery power supply unit and a voltage conversion unit; The battery power supply unit is electrically connected to the voltage conversion unit, and the voltage conversion unit is electrically connected to the acquisition module, the control module and the mobile communication module respectively. The voltage conversion unit is used to convert the voltage provided by the battery power supply unit into a voltage suitable for the operation of the acquisition module, the control module and the mobile communication module.

9. The wireless code reader according to claim 8, characterized in that: The voltage conversion unit comprises: a primary conversion subunit and a secondary conversion subunit; The input end of the primary conversion subunit is electrically connected to the battery power supply unit, the output end of the primary conversion subunit is electrically connected to the secondary conversion subunit and the mobile communication module respectively, and the secondary conversion subunit is electrically connected to the control module and the acquisition module; The battery power supply unit outputs a voltage of 12V, the primary conversion subunit is used to convert the voltage of 12V into a voltage of 4V, and the secondary conversion subunit is used to convert the voltage of 4V into a voltage of 3.3V.

10. The wireless code reader according to claim 1, characterized in that: The wireless code reader further includes: a burning module; The burning module is electrically connected to the control module, and is used for burning codes into the control module.

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