Handheld bluetooth and wireless communication relay device circuit

Abstract

The utility model discloses a handheld type relay equipment circuit with bluetooth and wireless communication, including main control circuit and communication circuit, the main control circuit includes main control chip U1, and the communication circuit includes communication chip U2, communication chip U3, data switch chip U4, radio frequency switch chip U8, 22 pins of main control chip U1 are connected bluetooth antenna through capacitor C15, inductor L2 and inductor L3 in proper order. The utility model discloses a handheld type relay equipment circuit with bluetooth and wireless communication, and it links up through main control circuit and communication circuit, obtains the relevant data of water meter through communication circuit and transmits data to mobile phone APP through bluetooth antenna of main control circuit, and the use of mobile phone APP is collocated, and simple operation and configuration are friendly to user interface, can clearly check the data of meter reading, and user obtains better experience, improves the efficiency of reading water meter.

Description

Technical Field

[0001] This utility model belongs to the field of water meter communication technology, specifically relating to a handheld relay device circuit with Bluetooth and wireless communication. Background Technology

[0002] With the advancement of smart city construction, the demand for smart water meters is increasing. Traditional water meter data collection relies on manual meter reading, which is inefficient, prone to errors, and cannot meet the needs of real-time monitoring and remote management.

[0003] Therefore, further improvements will be made to address the aforementioned issues. Utility Model Content

[0004] The main purpose of this utility model is to provide a handheld relay device circuit with Bluetooth and wireless communication. It is linked by a main control circuit and a communication circuit. The communication circuit obtains relevant data from the water meter and transmits the data to a mobile APP through the Bluetooth antenna of the main control circuit. When used with the mobile APP, it is easy to operate and configure, has a user-friendly interface, and allows users to clearly view the meter reading data, providing a better user experience and improving the efficiency of water meter reading.

[0005] To achieve the above objectives, this utility model provides a handheld relay device circuit with Bluetooth and wireless communication, including a main control circuit and a communication circuit. The main control circuit includes a main control chip U1, and the communication circuit includes a communication chip U2 (processing low-frequency signals), a communication chip U3 (processing high-frequency signals), a data switch chip U4, and an RF switch chip U8, wherein:

[0006] Pin 22 of the main control chip U1 is connected to the Bluetooth antenna (BLE_ANT1, which connects to the mobile APP via Bluetooth to obtain and transmit the water meter data to the mobile APP) through capacitor C15, inductor L2 and inductor L3 in sequence.

[0007] The 8th pin of the communication chip U2 is electrically connected to the 7th pin of the data switch chip U4 via resistor R6, and the 10th pin of the communication chip U2 is electrically connected to the 6th pin of the data switch chip U4 via resistor R4; the 8th pin of the communication chip U3 is electrically connected to the 5th pin of the data switch chip U4 via resistor R9, and the 10th pin of the communication chip U3 is electrically connected to the 5th pin of the data switch chip U4 via resistor R8; the 1st pin of the data switch chip U4 is electrically connected to the 48th pin of the main control chip U1, and the 2nd pin of the data switch chip U4 is electrically connected to the 47th pin of the main control chip U1; the 17th pin of the communication chip U2 is electrically connected to the 8th pin of the main control chip U1, and the 17th pin of the communication chip U3 is electrically connected to the 9th pin of the main control chip U1. (Communication chips U2 and U3 are respectively connected to the data switch chip U4, thereby realizing different LoRa frequency bands (low frequency / ...) The high-frequency UART signal can be switched to connect with external devices, allowing selection of the corresponding frequency band for serial communication. Ultimately, all data from the water meter is transmitted to the main control chip U1.

[0008] Pin 1 of the RF switch chip U8 is electrically connected to pin 15 of the communication chip U2, and pin 3 of the RF switch chip U8 is connected to pin 15 of the communication chip U3. Pin 4 of the RF switch chip U8 is electrically connected to pin 2 of the main control chip U1 through resistor R24, and pin 6 of the RF switch chip U8 is electrically connected to pin 3 of the main control chip U1 through resistor R23. Pin 5 of the RF switch chip U8 is connected to an RF antenna (LORA_ANT, which enables remote wireless meter reading, receiving water meter data and transmitting it to the main control chip U1).

[0009] As a further preferred technical solution to the above technical solution, it also includes a display circuit, which includes a display connector J5 (connecting different LEDs), and the display connector J5 is electrically connected to the main control chip U1 (different working states are displayed through different LEDs).

[0010] As a further preferred technical solution to the above technical solution, a power supply circuit is also included, which includes a charging interface chip USB1 (for charging the battery) and a voltage regulator chip U5 (for outputting a 3.3V voltage for power supply).

[0011] As a further preferred embodiment of the above technical solution, the power supply circuit further includes resistors R1 and R2 connected in series. The end of resistor R1 away from R2 is connected to the battery power supply terminal (VBAT), and the end of resistor R2 away from resistor R1 is grounded. The common terminal of resistors R2 and R1 is electrically connected to pin 1 of the main control chip U1 (for detecting battery voltage).

[0012] As a further preferred technical solution to the above technical solution, a crystal oscillator Y1 is connected between pins 24 and 25 of the main control chip U1. Attached Figure Description

[0013] Figure 1 This is the main control circuit diagram of this utility model.

[0014] Figure 2 This is a circuit diagram of communication chip U2 and communication chip U3 of the communication circuit of this utility model.

[0015] Figure 3 This is a circuit diagram of the data switch chip U4 and the radio frequency switch chip U8 of the communication circuit of this utility model.

[0016] Figure 4 This is the display circuit diagram of this utility model.

[0017] Figure 5 This is the power supply circuit diagram of this utility model. Detailed Implementation

[0018] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0019] This utility model discloses a handheld relay device circuit with Bluetooth and wireless communication. The specific embodiments of the utility model are further described below with reference to preferred embodiments.

[0020] In the embodiments of this utility model, those skilled in the art will note that the water meters and other related devices involved in this utility model can be considered as prior art.

[0021] Preferred embodiment.

[0022] like Figure 1-5As shown, this utility model discloses a handheld relay device circuit with Bluetooth and wireless communication, including a main control circuit and a communication circuit. The main control circuit includes a main control chip U1, and the communication circuit includes a communication chip U2 (processing low-frequency signals), a communication chip U3 (processing high-frequency signals), a data switch chip U4, and an RF switch chip U8, wherein:

[0023] Pin 22 of the main control chip U1 is connected to the Bluetooth antenna (BLE_ANT1, which connects to the mobile APP via Bluetooth to obtain and transmit the water meter data to the mobile APP) through capacitor C15, inductor L2 and inductor L3 in sequence.

[0024] The 8th pin of the communication chip U2 is electrically connected to the 7th pin of the data switch chip U4 via resistor R6, and the 10th pin of the communication chip U2 is electrically connected to the 6th pin of the data switch chip U4 via resistor R4; the 8th pin of the communication chip U3 is electrically connected to the 5th pin of the data switch chip U4 via resistor R9, and the 10th pin of the communication chip U3 is electrically connected to the 5th pin of the data switch chip U4 via resistor R8; the 1st pin of the data switch chip U4 is electrically connected to the 48th pin of the main control chip U1, and the 2nd pin of the data switch chip U4 is electrically connected to the 47th pin of the main control chip U1; the 17th pin of the communication chip U2 is electrically connected to the 8th pin of the main control chip U1, and the 17th pin of the communication chip U3 is electrically connected to the 9th pin of the main control chip U1. (Communication chips U2 and U3 are respectively connected to the data switch chip U4, thereby realizing different LoRa frequency bands (low frequency / ...) The high-frequency UART signal can be switched to connect with external devices, allowing selection of the corresponding frequency band for serial communication. Ultimately, all data from the water meter is transmitted to the main control chip U1.

[0025] Pin 1 of the RF switch chip U8 is electrically connected to pin 15 of the communication chip U2, and pin 3 of the RF switch chip U8 is connected to pin 15 of the communication chip U3. Pin 4 of the RF switch chip U8 is electrically connected to pin 2 of the main control chip U1 through resistor R24, and pin 6 of the RF switch chip U8 is electrically connected to pin 3 of the main control chip U1 through resistor R23. Pin 5 of the RF switch chip U8 is connected to an RF antenna (LORA_ANT, which enables remote wireless meter reading, receiving water meter data and transmitting it to the main control chip U1).

[0026] Specifically, it also includes a display circuit, which includes a display connector J5 (connecting different LEDs), and the display connector J5 is electrically connected to the main control chip U1 (different working states are displayed through different LEDs).

[0027] More specifically, it also includes a power supply circuit, which includes a charging interface chip USB1 (for charging the battery) and a voltage regulator chip U5 (for outputting a 3.3V voltage for power supply).

[0028] Furthermore, the power supply circuit also includes resistors R1 and R2 connected in series. The end of resistor R1 away from R2 is connected to the battery power supply terminal (VBAT), and the end of resistor R2 away from resistor R1 is grounded. The common terminal of resistors R2 and R1 is electrically connected to pin 1 of the main control chip U1 (for detecting battery voltage).

[0029] Furthermore, a crystal oscillator Y1 is connected between pins 24 and 25 of the main control chip U1.

[0030] In this invention, the LED light effectively displays the Bluetooth connection, meter reading process, and battery level. Compared to traditional handheld wireless devices, the combination with a mobile app simplifies human-computer interaction, making configuration, meter reading, valve control, and data uploading effortless.

[0031] It is worth mentioning that the technical features of water meters and other related technologies involved in this utility model patent application should be regarded as prior art. The specific structure, working principle, control method and spatial arrangement of these technical features can be adopted using conventional choices in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not elaborate further.

[0032] For those skilled in the art, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hand-held Bluetooth and wireless communication enabled relay device circuit, comprising: a housing; a Bluetooth module; a wireless communication module; a power source; a processor; a memory; a user interface; and a relay module. The circuit includes a main control circuit and a communication circuit. The main control circuit includes a main control chip U1, and the communication circuit includes a communication chip U2, a communication chip U3, a data switch chip U4, and an RF switch chip U8, wherein: Pin 22 of the main control chip U1 is connected to the Bluetooth antenna via capacitor C15, inductor L2 and inductor L3 in sequence. The 8th pin of the communication chip U2 is electrically connected to the 7th pin of the data switch chip U4 via resistor R6, and the 10th pin of the communication chip U2 is electrically connected to the 6th pin of the data switch chip U4 via resistor R4; the 8th pin of the communication chip U3 is electrically connected to the 5th pin of the data switch chip U4 via resistor R9, and the 10th pin of the communication chip U3 is electrically connected to the 5th pin of the data switch chip U4 via resistor R8; the 1st pin of the data switch chip U4 is electrically connected to the 48th pin of the main control chip U1, and the 2nd pin of the data switch chip U4 is electrically connected to the 47th pin of the main control chip U1; the 17th pin of the communication chip U2 is electrically connected to the 8th pin of the main control chip U1, and the 17th pin of the communication chip U3 is electrically connected to the 9th pin of the main control chip U1; Pin 1 of the RF switch chip U8 is electrically connected to pin 15 of the communication chip U2, and pin 3 of the RF switch chip U8 is connected to pin 15 of the communication chip U3. Pin 4 of the RF switch chip U8 is electrically connected to pin 2 of the main control chip U1 through resistor R24, and pin 6 of the RF switch chip U8 is electrically connected to pin 3 of the main control chip U1 through resistor R23. Pin 5 of the RF switch chip U8 is connected to the RF antenna.

2. The handheld relay device circuit with Bluetooth and wireless communication according to claim 1, characterized in that, It also includes a display circuit, which includes a display connector J5, and the display connector J5 is electrically connected to the main control chip U1.

3. The handheld relay device circuit with Bluetooth and wireless communication according to claim 1, characterized in that, It also includes a power supply circuit, which includes a charging interface chip USB1 and a voltage regulator chip U5.

4. The handheld relay device circuit with Bluetooth and wireless communication according to claim 3, characterized in that, The power supply circuit also includes resistors R1 and R2 connected in series. The end of resistor R1 away from R2 is connected to the battery power supply terminal, and the end of resistor R2 away from resistor R1 is grounded. The common terminal of resistors R2 and R1 is electrically connected to pin 1 of the main control chip U1.

5. The handheld relay device circuit with Bluetooth and wireless communication according to claim 1, characterized in that, A crystal oscillator Y1 is connected between pins 24 and 25 of the main control chip U1.

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