Bluetooth broadcast sound box with payment function

Abstract

The utility model relates to a bluetooth broadcasting sound box with a payment function, which comprises a Cat1 4G module, a storage module, a display module, a power supply module, a WIFI module, a bluetooth module, an audio module and an SIM card interface, and is characterized in that the Cat1 4G module is respectively connected with the storage module, the display module, the power supply module, the WIFI module and the audio module so as to respectively transmit signals and commands with each module; the storage module is used for storing data, the display module is provided with a display screen for displaying, the power supply module comprises a battery and a charging circuit, the WIFI module is used for WIFI communication, the Bluetooth module is used for broadcasting sound and Bluetooth music, the audio module is provided with an audio power amplifier for playing audio, and the SIM card interface is used for inserting an SIM card for network communication and realizing a payment function. The sound box adopts a Cat1 4G module and combines multiple functional modules, has double functions of a Bluetooth sound box and payment, can broadcast loud sound after payment, can complete payment through code scanning without WeChat, and is suitable for application in multiple scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of payment equipment, and in particular to a Bluetooth announcement speaker with a payment function. Background Art

[0002] Due to the increasingly powerful network communication function and the convenience of mobile phone use, mobile payment has become one of the alternatives to cash payment. However, the QR code scanning on the market is a piece of paper, and the sound prompt after scanning is on the mobile phone. For example, many Chinese merchants paste the payment code of a third party (such as WeChat or Alipay) and use the third party's transfer or collection function to transfer the transaction payment amount to the operator's account through the third party's payment code. However, QR codes or WeChat and Alipay are basically not used abroad. In order to expand this market, it is necessary to develop a device that can realize payment functions without WeChat and Alipay. Utility Model Content

[0003] In view of this, a Bluetooth announcement speaker with a payment function is provided, which can play audio and realize code scanning payment.

[0004] A Bluetooth broadcasting speaker with a payment function comprises a Cat1 4G module, a storage module, a display module, a power module, a WIFI module, a Bluetooth module, an audio module and a SIM card interface, wherein the Cat1 4G module is respectively connected to the storage module, the display device, the power module, the WIFI module and the audio module to transmit signals and commands to each module respectively, the storage module is used to store data, the display module is equipped with a display screen for display, the power module comprises a battery and a charging circuit, the WIFI module performs WIFI communication, the Bluetooth module is used to broadcast sound and Bluetooth music, the audio module has an audio power amplifier to play audio, and the SIM card interface is used to connect a SIM card to perform network communication and realize the payment function.

[0005] Furthermore, the storage module has a read-write pin CS and a power supply pin VCC. The read-write pin CS of the storage module is connected to a pin VDD_EXT of the main chip of the Cat1 4G module through a resistor R401. The power supply pin VCC of the storage module is connected to a pin VDD_EXT of the main chip of the Cat1 4G module and a capacitor C402 is connected in parallel. The capacitor C402 is grounded.

[0006] Furthermore, the main chip of the Cat1 4G module has a pin for connecting to a USB, and the USB is a Type C interface.

[0007] Furthermore, the battery is a rechargeable battery, and the charging circuit includes a charging chip U403, a P-channel MOS tube, and a connector J401. The charging chip U403 has a first enable pin CE, a power supply pin VCC, a battery connection pin BAT, and a temperature control pin TEMP. The first enable pin CE is connected to a charging enable pin CHG_EN of the main chip of the Cat1 4G module through a fourth transistor Q401, a resistor R408, and a resistor R406. The collector of the fourth transistor Q401 is connected to the first enable pin CE of the charging chip U403, and the emitter is grounded. The substrate of the fourth transistor Q401 is simultaneously connected to the first end of the resistor R408 and the first end of the resistor R406. The second end of the resistor R408 is grounded, and the second end of the resistor R406 is connected to the charging enable pin CHG_EN of the main chip.

[0008] Furthermore, the power supply pin VCC of the charging chip U403 is connected to the bus power supply terminal VBUS of the main chip of the Cat1 4G module through a resistor R414, the middle position of the power supply pin VCC of the charging chip U403 and the resistor R414 is grounded through a capacitor C404, and the first enable pin CE of the charging chip U403 is connected to the middle of the line connected to the power supply pin VCC of the charging chip U403 and the capacitor C404 through a resistor R407 at the front end of the fourth transistor Q401.

[0009] Furthermore, the battery connection pin BAT is grounded through a capacitor C403 and then connected to a battery terminal pin VBAT, the temperature control pin TEMP is grounded through a resistor R409, and the battery terminal pin VBAT is connected to the collector of the fourth transistor Q401.

[0010] Further, the source of the P-channel MOS tube is connected to the bus power supply terminal VBUS of the main chip of the Cat1 4G module through the first Schottky diode D408, two rectifier diodes D405 and D406, the two rectifier diodes D405 and D406 are connected in parallel between the first Schottky diode D408 and the bus power supply terminal VBUS, the first Schottky diode D408, the two rectifier diodes D405 and D406 The cathode is directly or indirectly connected to the source of the P-channel MOS tube and the battery terminal pin VBAT, the source and drain of the P-channel MOS tube are connected in parallel with the second Schottky diode D502 between the battery terminal pin VBAT and the battery BAT4, and the gate of the P-channel MOS tube is connected to the Cat1 through a resistor R418 The bus power supply terminal VBUS of the main chip of the 4G module, the gate of the P-channel MOS tube and the middle position of the resistor R418 are grounded through the resistor R419, the first pin of the plug terminal J401 is connected to the battery BAT4, and the first pin of the plug terminal J401 is connected to the front end of the battery BAT4 and is grounded respectively through a unidirectional suppression diode D404, a capacitor C410 and a capacitor C411.

[0011] The first Schottky diode D408 is used for low voltage high frequency inverter, freewheeling and polarity protection applications, preferably LMBR140FT1G. The two rectifier diodes D405 and D406 are suitable for high temperature environment diodes, preferably SOD4001-SH type diodes, with excellent electrical characteristics such as low clamping voltage, low leakage current and high surge capability. The unidirectional suppression diode D404 is preferably a PTVSHC3D4V5B single-line bidirectional transient voltage suppressor to protect sensitive electronic components connected to the power line from ESD (electrostatic discharge), EFT (electrical fast transient) and lighting-induced overstress.

[0012] Furthermore, it also includes a bidirectional level converter and a unidirectional level converter, the bidirectional level converter includes a transistor Q501 and a resistor-capacitor filter circuit, the base of the transistor Q501 is connected to the main chip pin VDD_EXT of the Cat1 4G module through the resistor-capacitor filter circuit, the collector of the transistor Q501 is connected to the pin end BT_U1_RX of the battery, the emitter of the transistor Q501 is connected to the pin end U3TXD of the battery, the collector of the transistor Q501 is connected to the contact VIB of the battery through a resistor R504, and the unidirectional level converter includes a third Schottky diode D501, the positive electrode of the third Schottky diode D501 is connected to the pin end U3RXD of the battery, and the negative electrode is connected to the pin end BT_U1_TX of the battery, the third Schottky diode D501 is connected in parallel with a resistor R509, and the positive electrode of the third Schottky diode D501 is connected to the main chip pin VDD_EXT of the Cat1 4G module through a resistor R508.

[0013] Furthermore, the speaker also includes a low voltage dropout linear regulator and a digital-to-analog converter. The pin VIN of the low voltage dropout linear regulator is connected to the battery terminal pin VBAT of the battery chip after being grounded through two parallel capacitors C603 and C604. The pin EN of the low voltage dropout linear regulator is connected to the pin DAC_VDD_EN of the parallel capacitor C603 through a resistor R601 and is grounded at the front end through a resistor R606. The pin OUT of the low voltage dropout linear regulator is connected to the pin DAC_VDD_3V3 of the digital-to-analog converter after being grounded through two parallel capacitors C601 and C602.

[0014] Furthermore, the main chip of the Cat1 4G module is connected to a 4G antenna, and network communication is performed with the backend database via the 4G antenna.

[0015] The above-mentioned Bluetooth announcement speaker with payment function can communicate with the backend database through the mobile phone card after inserting the SIM card, and can also allow consumers to scan the code to pay. They can use WeChat or the APP's scanning function to scan the code to pay. The speaker has the function of a Bluetooth speaker and can broadcast loudly after the payment is completed. Even if you are abroad and do not need WeChat, you can scan the code to complete the payment. In addition, the Bluetooth announcement speaker uses a Cat1 4G module, which is suitable for ordinary users in various scenarios. The hardware is simple and easy to carry. At the same time, the entire speaker has both a WIFI module and a 4G network communication function. It has diverse functions and a wider range of usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the framework structure of a Bluetooth announcement speaker with a payment function provided by an embodiment of the utility model.

[0017] Figure 2 yes Figure 1 Schematic diagram of the circuit structure of the Cat1 4G module main chip of the Bluetooth broadcast speaker with payment function.

[0018] Figure 3 The utility model is a circuit structure diagram of a storage module of a Bluetooth broadcasting speaker with a payment function according to an embodiment of the utility model.

[0019] Figure 4 The utility model is a schematic diagram of a single-cell Li battery charging circuit structure of a Bluetooth broadcasting speaker with a payment function according to an embodiment of the utility model.

[0020] Figure 5 It is a schematic diagram of the charging path management circuit structure of a Bluetooth broadcasting speaker with a payment function according to an embodiment of the utility model.

[0021] Figure 6 It is a structural schematic diagram of a charging connection terminal of a Bluetooth broadcasting speaker with a payment function according to an embodiment of the utility model.

[0022] Figure 7a It is a schematic diagram of the bidirectional level conversion circuit structure of discrete devices in a Bluetooth broadcast speaker with payment function in an embodiment of the utility model.

[0023] Figure 7b It is a schematic diagram of the unidirectional level conversion circuit structure of discrete devices in a Bluetooth broadcast speaker with payment function in an embodiment of the utility model.

[0024] Figure 8 It is a schematic diagram of the circuit structure of a low voltage difference linear regulator of a Bluetooth broadcasting speaker with a payment function according to an embodiment of the utility model.

[0025] Fig. 9 The utility model is a schematic diagram of the circuit structure of a digital-to-analog converter of a Bluetooth broadcasting speaker with a payment function according to an embodiment of the utility model. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0027] See also Figure 1 and Figure 2, showing a Bluetooth broadcast speaker with payment function provided by an embodiment of the utility model, including a Cat1 4G module, a storage module, a display module, a power module, a WIFI module, a Bluetooth module, an audio module and a SIM card interface, the Cat1 4G module is respectively connected to the storage module, the display device, the power module, the WIFI module, and the audio module to transmit signals and commands to each module respectively, the storage module is used to store data, the display module is equipped with a display screen for display, the power module includes a battery and a charging circuit, the WIFI module performs WIFI communication, the Bluetooth module is used to broadcast sound and Bluetooth music, the audio module has an audio power amplifier to play audio, and the SIM card interface is used to plug in a SIM card to perform network communication and realize payment function.

[0028] Specifically, the Cat1 4G module is a SOC integrated module having a main chip, that is, a system-on-chip chip, which is a LE1101-ZML chip in this embodiment. Figure 3 As shown, further, the storage module FLASH has a read-write pin CS and a power supply pin VCC, the read-write pin CS of the storage module is connected to a pin VDD_EXT of the main chip of the Cat1 4G module through a resistor R401, the power supply pin VCC of the storage module is connected to a pin VDD_EXT of the main chip of the Cat1 4G module and a capacitor C402 is connected in parallel, and the capacitor C402 is grounded.

[0029] like Figure 1 and 2 As shown, further, the main chip of the Cat1 4G module has a pin for connecting to a USB, and the USB is a Type C interface, which can be used for charging and data transmission at the same time.

[0030] Furthermore, the battery is a rechargeable battery, such as Figure 4 , Figure 5 and Figure 6As shown, the charging circuit includes a charging chip U403, a P-channel MOS tube, and a plug terminal J401. The charging chip U403 has a first enable pin CE, a power supply pin VCC, a battery connection pin BAT, and a temperature control pin TEMP. The first enable pin CE is connected to a charging enable pin CHG_EN of the main chip of the Cat1 4G module through a fourth transistor Q401, a resistor R408, and a resistor R406. The collector of the fourth transistor Q401 is connected to the first enable pin CE of the charging chip U403, and the emitter is grounded. The substrate of the fourth transistor Q401 is simultaneously connected to the first end of the resistor R408 and the first end of the resistor R406. The second end of the resistor R408 is grounded, and the second end of the resistor R406 is connected to the charging enable pin CHG_EN of the main chip.

[0031] Furthermore, the power supply pin VCC of the charging chip U403 is connected to the bus power supply terminal VBUS of the main chip of the Cat1 4G module through a resistor R414, the middle position of the power supply pin VCC of the charging chip U403 and the resistor R414 is grounded through a capacitor C404, and the first enable pin CE of the charging chip U403 is connected to the middle of the line connected to the power supply pin VCC of the charging chip U403 and the capacitor C404 through a resistor R407 at the front end of the fourth transistor Q401.

[0032] Furthermore, the battery connection pin BAT is grounded through a capacitor C403 and then connected to a battery terminal pin VBAT, the temperature control pin TEMP is grounded through a resistor R409, and the battery terminal pin VBAT is connected to the collector of the fourth transistor Q401.

[0033] Specifically, Figure 5As shown, the source of the P-channel MOS tube U404 is connected to the bus power supply terminal VBUS of the main chip of the Cat1 4G module through the first Schottky diode D408, two rectifier diodes D405 and D406, the two rectifier diodes D405 and D406 are connected in parallel between the first Schottky diode D408 and the bus power supply terminal VBUS, the first Schottky diode D408, the two rectifier diodes D405 and D406 The cathodes are directly or indirectly connected to the source of the P-channel MOS tube U404 and the battery terminal pin VBAT, the source and drain of the P-channel MOS tube U404 are connected in parallel with the second Schottky diode D502 between the battery terminal pin VBAT and the battery BAT4, and the gate of the P-channel MOS tube U404 is connected to the Cat1 The bus power supply terminal VBUS of the main chip of the 4G module, the gate of the P-channel MOS tube U404 and the middle position of the resistor R418 are grounded through the resistor R419, the first pin of the plug terminal J401 is connected to the battery BAT4, and the first pin of the plug terminal J401 is connected to the front end of the battery BAT4 and is grounded respectively through a unidirectional suppression diode D404, a capacitor C410 and a capacitor C411. Figure 5 It is an auxiliary circuit of the charging circuit and a path management circuit. When there is no battery, the electronic product or machine can still work by connecting to the charger. When the charger is not connected, the power supply of the electronic product or machine is provided by the battery. When both are connected, the power is provided by the charger.

[0034] Furthermore, if Figure 7a and Figure 7b As shown, the Bluetooth broadcast speaker also includes a level converter, of which there are two in the figure, which are a bidirectional level conversion circuit ( Figure 7a ) and unidirectional level shifting circuits ( Figure 7b ). The bidirectional level conversion circuit includes a transistor Q501 and a resistor-capacitor filter circuit. The base of the transistor Q501 is connected to the main chip pin VDD_EXT of the Cat1 4G module through the resistor-capacitor filter circuit, the collector of the transistor Q501 is connected to the pin end BT_U1_RX of the battery, the emitter of the transistor Q501 is connected to the pin end U3TXD of the battery, and the collector of the transistor Q501 is connected to the contact point VIB of the battery through a resistor R504. The unidirectional level conversion circuit includes a third Schottky diode D501, and the unidirectional level converter includes a third Schottky diode D501, the positive electrode of the third Schottky diode D501 is connected to the pin terminal U3RXD of the battery, and the negative electrode is connected to the pin terminal BT_U1_TX of the battery. The third Schottky diode D501 is also connected in parallel with a resistor R509, and the positive electrode of the third Schottky diode D501 is connected to the main chip pin VDD_EXT of the Cat1 4G module through a resistor R508.

[0035] Furthermore, the speaker box also includes a low voltage dropout linear regulator and a digital-to-analog converter. Figure 8 and Fig. 9 As shown, the chip U601 of the low voltage dropout linear regulator is of model WL2808E33-5 / TR. The pin VIN of the low voltage dropout linear regulator chip is connected to the battery terminal pin VBAT of the battery chip after being grounded through two parallel capacitors C603 and C604, the pin EN of the low voltage dropout linear regulator is connected to the pin DAC_VDD_EN of the parallel capacitor C603 through a resistor R601 and grounded through a resistor R606 at the front end, and the pin OUT of the low voltage dropout linear regulator is connected to the pin DAC_VDD_3V3 of the digital-to-analog converter after being grounded through two parallel capacitors C601 and C602.

[0036] Furthermore, the main chip of the Cat1 4G module is connected to a 4G antenna, and network communication is performed with the backend database via the 4G antenna.

[0037] The above-mentioned Bluetooth announcement speaker with payment function communicates with the background database through the network after inserting the SIM card. After generating a code, it allows consumers to scan the code for payment. You can use WeChat to scan the code or the scanning function of the APP. After scanning the code, the mobile phone will prompt a page to remind you to enter the amount. After clicking to pay, the background server can see the recorded data. The speaker also has the function of a Bluetooth speaker. At the same time, it can broadcast loudly after the payment is completed. Even if you are abroad, you can scan the code to complete the payment without WeChat. In addition, the Bluetooth announcement speaker uses Cat1 4G module, which is suitable for ordinary users in various scenarios. The hardware is simple and easy to carry. At the same time, the entire speaker has both a WIFI module and a 4G network communication function, and the usage scenarios are more extensive.

[0038] It should be noted that the present invention is not limited to the above-mentioned embodiments. According to the creative spirit of the present invention, those skilled in the art may also make other changes. These changes made according to the creative spirit of the present invention should be included in the scope of protection required by the present invention.

Claims

1. A Bluetooth announcement speaker with payment function, characterized in that: It includes a Cat1 4G module, a storage module, a display module, a power module, a WIFI module, a Bluetooth module, an audio module and a SIM card interface. The Cat1 4G module is respectively connected to the storage module, the display device, the power module, the WIFI module and the audio module to transmit signals and commands to each module respectively. The storage module is used to store data. The display module is equipped with a display screen for display. The power module includes a battery and a charging circuit. The WIFI module performs WIFI communication. The Bluetooth module is used to broadcast sound and Bluetooth music. The audio module has an audio power amplifier to play audio. The SIM card interface is used to connect a SIM card to perform network communication and realize payment functions.

2. The Bluetooth announcement speaker with payment function as claimed in claim 1, characterized in that: The storage module has a read / write pin CS and a power supply pin VCC. The read / write pin CS of the storage module is connected to a pin VDD_EXT of the main chip of the Cat1 4G module through a resistor R401. The power supply pin VCC of the storage module is connected to a pin VDD_EXT of the main chip of the Cat1 4G module and a capacitor C402 is connected in parallel. The capacitor C402 is grounded.

3. The Bluetooth announcement speaker with payment function as claimed in claim 1, characterized in that: The main chip of the Cat1 4G module has a pin for connecting to a USB, and the USB is a Type C interface.

4. The Bluetooth announcement speaker with payment function as claimed in claim 1, characterized in that: The battery is a rechargeable battery. The charging circuit includes a charging chip U403, a P-channel MOS tube, and a connector J401. The charging chip U403 has a first enable pin CE, a power supply pin VCC, a battery connection pin BAT, and a temperature control pin TEMP. The first enable pin CE is connected to a charging enable pin CHG_EN of the main chip of the Cat1 4G module through a fourth transistor Q401, a resistor R408, and a resistor R406. The collector of the fourth transistor Q401 is connected to the first enable pin CE of the charging chip U403, and the emitter is grounded. The substrate of the fourth transistor Q401 is simultaneously connected to the first end of the resistor R408 and the first end of the resistor R406. The second end of the resistor R408 is grounded, and the second end of the resistor R406 is connected to the charging enable pin CHG_EN of the main chip.

5. The Bluetooth announcement speaker with payment function as claimed in claim 4, characterized in that: The power supply pin VCC of the charging chip U403 is connected to the bus power supply terminal VBUS of the main chip of the Cat1 4G module through a resistor R414. The middle position of the power supply pin VCC of the charging chip U403 and the resistor R414 is grounded through a capacitor C404. The first enable pin CE of the charging chip U403 is connected to the middle of the line connected to the power supply pin VCC of the charging chip U403 and the capacitor C404 through a resistor R407 at the front end of the fourth transistor Q401.

6. The Bluetooth announcement speaker with payment function as claimed in claim 4, characterized in that: The battery connection pin BAT is grounded through a capacitor C403 and then connected to a battery terminal pin VBAT. The temperature control pin TEMP is grounded through a resistor R409. The battery terminal pin VBAT is connected to the collector of the fourth transistor Q401.

7. The Bluetooth announcement speaker with payment function as claimed in claim 4, characterized in that: The source of the P-channel MOS tube is connected to the bus power supply terminal VBUS of the main chip of the Cat1 4G module through the first Schottky diode D408, two rectifier diodes D405 and D406, the two rectifier diodes D405 and D406 are connected in parallel between the first Schottky diode D408 and the bus power supply terminal VBUS, the first Schottky diode D408, the two rectifier diodes D405 and D406 The cathodes are directly or indirectly connected to the source of the P-channel MOS tube and the battery terminal pin VBAT, the source and drain of the P-channel MOS tube are connected in parallel with the second Schottky diode D502 between the battery terminal pin VBAT and the battery BAT4, and the gate of the P-channel MOS tube is connected to the Cat1 through a resistor R418 The bus power supply terminal VBUS of the main chip of the 4G module, the gate of the P-channel MOS tube and the middle position of the resistor R418 are grounded through the resistor R419, the first pin of the plug terminal J401 is connected to the battery BAT4, and the first pin of the plug terminal J401 is connected to the front end of the battery BAT4 and is grounded respectively through a unidirectional suppression diode D404, a capacitor C410 and a capacitor C411.

8. The Bluetooth announcement speaker with payment function as claimed in claim 1, characterized in that: It also includes a bidirectional level converter and a unidirectional level converter, the bidirectional level converter includes a transistor Q501 and a resistor-capacitor filter circuit, the base of the transistor Q501 is connected to the main chip pin VDD_EXT of the Cat1 4G module through the resistor-capacitor filter circuit, the collector of the transistor Q501 is connected to the pin end BT_U1_RX of the battery, the emitter of the transistor Q501 is connected to the pin end U3TXD of the battery, the collector of the transistor Q501 is connected to the contact VIB of the battery through a resistor R504, and the unidirectional level converter includes a third Schottky diode D501, the positive electrode of the third Schottky diode D501 is connected to the pin end U3RXD of the battery, and the negative electrode is connected to the pin end BT_U1_TX of the battery, the third Schottky diode D501 is connected in parallel with a resistor R509, and the positive electrode of the third Schottky diode D501 is connected to the main chip pin VDD_EXT of the Cat1 4G module through a resistor R508.

9. The Bluetooth announcement speaker with payment function as claimed in claim 1, characterized in that: It also includes a low-voltage difference linear regulator and a digital-to-analog converter. The pin VIN of the low-voltage difference linear regulator is connected to the battery terminal pin VBAT of the battery chip after being grounded through two parallel capacitors C603 and C604. The pin EN of the low-voltage difference linear regulator is connected to the pin DAC_VDD_EN of the parallel capacitor C603 through a resistor R601 and is grounded through a resistor R606 at the front end. The pin OUT of the low-voltage difference linear regulator is connected to the pin DAC_VDD_3V3 of the digital-to-analog converter after being grounded through two parallel capacitors C601 and C602.

10. The Bluetooth announcement speaker with payment function as claimed in claim 1, characterized in that: The main chip of the Cat1 4G module is connected to a 4G antenna, and network communication is performed with the backend database via the 4G antenna.

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