Pointer clock

Abstract

A pointer-type clock comprises an MCU, a first quartz crystal, a driving motor, and a pointer display mechanism, wherein the first quartz crystal is electrically connected to the MCU, the driving motor is connected to the MCU, and the driving motor is connected to the pointer display mechanism; the clock also comprises a Bluetooth clock calibration module, wherein the Bluetooth clock calibration module contains a Bluetooth host time data storage unit; the clock also comprises a Bluetooth antenna electrically connected to the antenna pin of the Bluetooth clock calibration module; the clock also comprises a second quartz crystal electrically connected to the crystal pin of the Bluetooth clock calibration module; the Bluetooth clock calibration module also comprises a data output pin, a clock pulse output pin, a positive power pin, a ground pin, and a wake-up pin, and the Bluetooth clock calibration module is an integrated circuit with eight pins; the clock optimizes the circuit structure and reduces the production cost; and does not require an additional APP method to enable the host to send time data.

Description

Technical Field

[0001] The utility model relates to a pointer-type clock. Background Art

[0002] The utility model application number CN201720721735.2 discloses a Bluetooth watch, such as Figure 1The invention comprises a chip IC1, a crystal oscillator Q1, a chip IC2 and a Bluetooth antenna A1, wherein the pin 1 of the chip IC1 is connected to the capacitor C2, the capacitor C3, the resistor R1 and the power supply BAT1, the pin 2 of the chip IC1 is connected to the inductor L3, the other end of the inductor L3 is connected to the inductor L4, the other end of the inductor L4 is connected to the capacitor C1, the capacitor C6, the pin 35 of the chip IC1 and the pin 36 of the chip IC1, the other end of the capacitor C1 is grounded, the other end of the power supply BAT1 is grounded, the other end of the capacitor C2 is grounded, the other end of the capacitor C3 is grounded, the other end of the resistor R1 is connected to the pin 23 of the chip IC1, the pin 30 of the chip IC1 is connected to the capacitor C7 and the pin 5 of the chip IC3, the pin 31 of the chip IC1 is connected to the pin 4 of the chip IC3, and the pin 32 of the chip IC1 is connected to the chip Pin 3 of IC3, the other end of capacitor C6 is grounded, another point of capacitor C7 is grounded, pin 46 of chip IC1 is connected to crystal oscillator Q1 and capacitor C9, pin 47 of chip IC1 is connected to the other end of crystal oscillator Q1 and capacitor C8, the other end of capacitor C8 is grounded, the other end of capacitor C9 is grounded, pin 1 of chip IC3 is connected to capacitor C12, the other end of capacitor C12 is connected to inductor L1 and inductor L2, the other end of inductor L1 is grounded, the other end of inductor L2 is connected to capacitor C13 and Bluetooth antenna A1, pin 18 of chip IC1 is connected to pin IN1 of chip IC2, pin IN2 of chip IC2 and pin IN3 of chip IC2, pin 19 of chip IC1 is connected to pin IN4 of chip IC2, pin IN5 of chip IC2 and pin IN6 of chip IC2. The model of chip IC1 is NRF51822, the model of chip IC2 is C1916, and the model of chip IC3 is 2450BM14E003. The beneficial effects of the utility model are as follows: 1. The clock can be connected to the mobile phone APP via Bluetooth. 2. After the clock is connected to the mobile phone APP, the time in the mobile phone can be synchronized. Moreover, current mobile phones have the function of synchronizing network time, so that the time of the clock can be synchronized with the time on the network, and the time of the clock can be more accurate and unified. 3. The hands of the clock can be adjusted through the mobile phone APP connection, without manual adjustment, which is more convenient for adjusting the hands of the clock. 4. The power consumption of the clock is low, and the battery can last for more than 1 year. The main chip IC1 of the utility model is a 48-pin chip, and there are also chips IC2 and IC3. The circuit structure is relatively complex, which is not conducive to reducing production costs; the new clock can synchronize the time in the mobile phone by connecting to the mobile phone APP. It is necessary to install a dedicated APP on the mobile phone, which is not very convenient to operate, especially for the elderly and children. It is more difficult. Summary of the invention

[0003] In order to overcome the shortcomings of the prior art solutions, the utility model provides an intelligent time-setting pointer-type clock.

[0004] The technical solution adopted by the utility model to solve its technical problem is: it includes an MCU, a first quartz crystal, a drive motor, and a pointer display mechanism, the first quartz crystal is electrically connected to the MCU, the drive motor is connected to the MCU, and the drive motor is connected to the pointer display mechanism, and is characterized in that it also includes a Bluetooth clock calibration module, and the Bluetooth clock calibration module internally contains a Bluetooth host time data storage unit.

[0005] Preferably, it further comprises a Bluetooth antenna, the Bluetooth clock calibration module has an antenna pin, and the Bluetooth antenna is connected to the antenna pin.

[0006] Preferably, the Bluetooth clock calibration module has a data output pin, and the Bluetooth clock calibration module is electrically connected to the MCU via the data output pin.

[0007] Preferably, a second quartz crystal is further included, the Bluetooth clock calibration module has two crystal pins, and the second quartz crystal is electrically connected to the crystal pins.

[0008] Preferably, the Bluetooth clock calibration module further comprises a clock pulse output pin electrically connected to the MCU.

[0009] Preferably, the Bluetooth clock calibration module also has a positive power pin and a ground pin, the antenna pin, the positive power pin and the ground pin are located at the upper end of the Bluetooth clock calibration module, and the crystal pin is located at the lower end of the Bluetooth clock calibration module.

[0010] Preferably, the Bluetooth clock calibration module also has a wake-up pin, and the Bluetooth clock calibration module is an integrated circuit with eight pins.

[0011] Compared with the prior art, the beneficial effects of the utility model are: two chips are used, the circuit structure is optimized, and the production cost is reduced; in addition, the Bluetooth clock calibration module adopted by the utility model can receive and store the time data of the Bluetooth host when connected to the Bluetooth host, and there is no need to use an additional APP to make the host send time data, thereby simplifying the difficulty of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the circuit structure of the prior art.

[0013] Figure 2 It is a schematic diagram of the structure of the utility model. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] from Figure 2 It can be seen that the embodiment of the utility model includes MCU1, a first quartz crystal 2, a drive motor 3, and a pointer display mechanism 4, wherein the first quartz crystal 2 is electrically connected to the MCU1, the drive motor 3 is connected to the MCU1, and the drive motor 3 is connected to the pointer display mechanism 4; it also includes a Bluetooth clock calibration module 7, and the Bluetooth clock calibration module 7 internally contains a Bluetooth host time data storage unit 7-9; it also includes a Bluetooth antenna 6, and the Bluetooth clock calibration module has an antenna pin 7-4, and the Bluetooth antenna 6 is connected to the antenna pin 7-4; the Bluetooth clock calibration module 7 has a data output pin 7-8, and the Bluetooth clock calibration module 7 is electrically connected to the MCU1 through the data output pin 7-8; it also includes a second quartz crystal 5, and the Bluetooth clock calibration module 7 has two crystal pins 7-5 and 7-6, and the second quartz crystal 5 is electrically connected to the crystal pins 7-5 and 7-6.

[0016] The Bluetooth clock calibration module 7 further includes a clock pulse output pin 7 - 7 electrically connected to the MCU1 .

[0017] The Bluetooth clock calibration module 7 also has a positive power pin 7-1 and a ground pin 7-3. The antenna pin 7-4, the positive power pin 7-1 and the ground pin 7-3 are located at the upper end of the Bluetooth clock calibration module 7, and the crystal pins 7-5 and 7-6 are located at the lower end of the Bluetooth clock calibration module 7.

[0018] The Bluetooth clock calibration module 7 also has a wake-up pin 7 - 2 . It can be seen that the Bluetooth clock calibration module 7 is an integrated circuit with eight pins.

[0019] The positive power pin 7-1 and the ground pin 7-3 are connected to the power supply to ensure that the Bluetooth clock calibration module 7 is in working state; the wake-up pin 7-2 is connected to a high voltage to allow the Bluetooth clock calibration module 7 to be in normal transceiver mode, and the wake-up pin 7-2 is connected to a low voltage to put the module in low power consumption mode. Smart phones or IPADs can be used as Bluetooth hosts, and the Bluetooth clock calibration module 7 sends and receives data with the host through the Bluetooth antenna 6; after the Bluetooth host scans the device of the embodiment of the utility model, it is necessary to establish Bluetooth pairing for the first time (no need to pair again when connecting again afterwards), and after the Bluetooth connection is established, the Bluetooth clock calibration module 7 immediately obtains time data from the host and stores it in the Bluetooth host time data storage unit 7-9, and sends the time data to the MCU1 through the data output pin 7-8. After receiving the time data, the MCU1 outputs a driving pulse to the driving motor 3, driving the driving motor 3 to rotate, so that the driving motor 3 drives the pointer display mechanism 4 connected thereto to operate, thereby displaying the same time as the Bluetooth host, achieving the purpose of time synchronization with the smart phone or IPAD. The entire process from Bluetooth pairing and connection establishment to time synchronization between the embodiment of the present invention and the Bluetooth host does not require the use of APP, mini-programs, etc.

[0020] Because the Bluetooth circuit consumes more power, after the synchronization is completed, the Bluetooth circuit can enter a low-power sleep state, and the MCU1 relies on the first quartz crystal 2 to ensure the accuracy of the clock. Usually, after 24 hours, the Bluetooth module is started again to synchronize with the smartphone or IPAD time again. The second quartz crystal 5 is used to ensure the operating accuracy of the Bluetooth clock calibration module 7. In the process of the Bluetooth clock calibration module 7 sending time data to the MCU1 through the data output pin 7-8, the Bluetooth clock calibration module 7 sends a clock pulse to the MCU1 through the clock pulse output pin 7-7, so that the MCU1 can identify the corresponding positions of different time data sent by the Bluetooth clock calibration module 7; the clock pulse can also be used as the MCU1 to determine the start and end of the time data sent by the Bluetooth clock calibration module 7, thereby ensuring the reliability of sending and receiving data.

[0021] Compared with the prior art, the beneficial effects of the utility model are: two chips are used, the circuit structure is optimized, and the production cost is reduced; in addition, the Bluetooth clock calibration module adopted by the utility model can receive and store the time data of the Bluetooth host when connected to the Bluetooth host through optimizing the design of relevant programs, and there is no need to use an additional APP to make the host send time data, thereby simplifying the difficulty of use.

Claims

1. A pointer-type clock, comprising an MCU, a first quartz crystal, a drive motor, and a pointer display mechanism, wherein the first quartz crystal is electrically connected to the MCU, the drive motor is connected to the MCU, and the drive motor is connected to the pointer display mechanism, characterized in that: It also includes a Bluetooth clock calibration module, which contains a Bluetooth host time data storage unit.

2. The pointer-type clock according to claim 1, further characterized in that: It also includes a Bluetooth antenna. The Bluetooth clock calibration module has an antenna pin, and the Bluetooth antenna is connected to the antenna pin.

3. The pointer-type clock according to claim 2, further characterized in that: The Bluetooth clock calibration module has a data output pin, and the Bluetooth clock calibration module is electrically connected to the MCU via the data output pin.

4. The pointer-type clock according to claim 3, further characterized in that : Also includes a second quartz crystal, the Bluetooth clock calibration module has two crystal pins, and the second quartz crystal is electrically connected to the crystal pins.

5. The pointer-type clock according to claim 4, further characterized in that: The Bluetooth clock calibration module also includes a clock pulse output pin electrically connected to the MCU.

6. The pointer-type clock according to claim 5, further characterized in that: The Bluetooth clock calibration module also has a positive power pin and a ground pin. The antenna pin, the positive power pin and the ground pin are located at the upper end of the Bluetooth clock calibration module, and the crystal pin is located at the lower end of the Bluetooth clock calibration module.

7. The pointer-type clock according to claim 6, further characterized in that: The Bluetooth clock calibration module also has a wake-up pin, and the Bluetooth clock calibration module is an integrated circuit with eight pins.

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