An extremely low power consumption temperature and humidity monitor

Abstract

The utility model provides an extremely low power consumption temperature and humidity monitor, including the casing, the circuit board inside the casing is provided with control chip, 4G chip and with dry battery connects controllable boost circuit, control chip still is connected with the signal of starting button, arrival button and bluetooth button, control chip receives the signal of starting button, only uses dry battery to power supply, control chip receives the signal of arrival button, and dry battery supplies power to controllable boost circuit. The extremely low power consumption temperature and humidity monitor has only kept the working state display LED lamp and the necessary control button, and this is also favorable to reduce the cost. The bluetooth function is equipped with greatly facilitates the realization of the demand of equipment function parameter setting, record data reading etc. in the use process. After completing the transportation task, still can read out the whole process temperature and humidity record data by the mobile phone and other equipment by bluetooth in the local.

Description

Technical Field

[0001] This utility model relates to a detection device, and more particularly to an ultra-low power temperature and humidity monitoring instrument. Background Technology

[0002] When transporting biochemicals, pharmaceuticals, and food via long-haul air, it is essential to have equipment that can monitor and record the temperature and humidity inside the insulated container in real time. This real-time data must be recorded and uploaded to a server before takeoff and during transport after landing. However, due to the special safety requirements of aircraft batteries, using ordinary lithium batteries to power the equipment poses safety risks. Furthermore, during flight, it is crucial to minimize the transmission of radio waves and reduce their impact on flight communications. Therefore, a temperature and humidity monitoring instrument is needed that can simultaneously upload data in real time from the ground, maintain silent wireless communication during flight, ensure the safety and reliability of the power supply battery, and allow for easy reading of the recorded temperature and humidity data without removing the device from the insulated container. Utility Model Content

[0003] This invention provides an ultra-low power temperature and humidity monitor to solve the aforementioned problems. On the ground, it uses 4G (Cat.1) communication and 4G base station positioning to achieve a rough location of the monitor. During flight, it employs timed network detection and wireless silence to determine whether it is in flight, thus fulfilling the intended purpose. It is powered by AAA alkaline batteries to ensure battery safety. Due to the small battery capacity, power conservation must be maximized; during the sampling interval, the monitor should be kept in sleep mode to minimize battery consumption. The technical solution is as follows:

[0004] An ultra-low power temperature and humidity monitor includes a housing. The circuit board inside the housing is equipped with a control chip, a 4G chip, and a controllable boost circuit connected to a dry cell battery. The control chip is also connected to a start button, an arrival button, and a Bluetooth button. When the control chip receives a signal from the start button, it is powered only by the dry cell battery. When the control chip receives a signal from the arrival button, the dry cell battery powers the controllable boost circuit.

[0005] The control chip uses a CH579M chip with a built-in Bluetooth module and is connected to a Bluetooth antenna.

[0006] The 4G chip is an ML307R chip, and it is also connected to a 4G antenna.

[0007] The control chip is also connected to a USB interface.

[0008] The ultra-low power temperature and humidity monitor is also equipped with a SIM card slot for installing a SIM card to enable 4G communication.

[0009] The CH579M chip has pin 39 connected to the start button, pin 40 connected to the arrival button, and pin 41 connected to the Bluetooth button.

[0010] Pins 4, 5, and 6 of the CH579M chip are connected to the ML307R chip of the 4G chip, and pin 23 is connected to pin 15 of the ML307R chip to realize the reset of the ML307R chip.

[0011] The controllable boost circuit uses the FS2114 chip, and pins 0, 3 and 24 of the CH579M chip are connected to the FS2114 chip.

[0012] The ultra-low power temperature and humidity monitor is designed and its components are selected with full consideration of using mature, low-cost domestic components as much as possible while fulfilling the necessary functions. This keeps the cost below the cost of 2-3 express deliveries, greatly facilitating product promotion and widespread adoption. The component selection prioritizes highly integrated devices (such as domestically produced high-capacity FLASH CPUs with Bluetooth functionality), reducing the variety of components, lowering costs, and decreasing the probability of component failures.

[0013] Since the ultra-low power temperature and humidity monitor operates entirely within an insulated box during transport, manual monitoring of its operating status is unnecessary. Therefore, the LCD display commonly found on digital devices has been eliminated, retaining only the LED indicator for operating status and essential control buttons. This also helps reduce costs. The included Bluetooth functionality greatly facilitates setting device parameters and retrieving recorded data during use. After completing the transport mission, the entire temperature and humidity data can be retrieved via Bluetooth from a mobile phone or other device locally. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the appearance of the ultra-low power temperature and humidity monitor.

[0015] Figure 2 This is a schematic diagram of the circuit framework of the ultra-low power temperature and humidity monitor.

[0016] Figure 3 This is a circuit connection diagram of the ultra-low power temperature and humidity monitor. Detailed Implementation

[0017] like Figure 1 As shown, the ultra-low power temperature and humidity monitor includes a housing. The front of the housing is equipped with an indicator light, a Bluetooth button, a start button, and an arrival button. Two AAA batteries are installed inside the housing.

[0018] like Figure 2 and Figure 3 As shown, the circuit board inside the housing of the ultra-low power temperature and humidity monitor includes a control chip and a 4G chip. The control chip is a CH579M chip, which is connected to the 4G chip. The control chip is also connected to a temperature and humidity sensor, a controllable boost circuit, and a Bluetooth antenna.

[0019] The control chip is connected to the start button and the arrival button. When this invention is in use, pressing the start button will start the invention, recording the data from the temperature and humidity sensor and storing it in the FLASH chip; after reaching the destination, pressing the arrival button will stop the invention. Regarding pin connections, pin 39 of the CH579M chip is connected to the start button, and pin 40 is connected to the arrival button.

[0020] The 4G chip used is the ML307R chip, and it is also connected to a 4G antenna. The ultra-low power temperature and humidity monitor requires a SIM card to use the 4G chip for data transmission. Regarding pin connections, pins 4, 5, and 6 of the CH579M chip are connected to the ML307R chip, and pin 23 is connected to pin 15 of the ML307R chip to reset the ML307R chip.

[0021] The control chip is also connected to a USB interface, which can be used to transmit recorded data.

[0022] In addition to the USB interface, data transmission can also be performed via Bluetooth. The control chip is connected to a Bluetooth antenna, which is connected to a Bluetooth button. Pressing the Bluetooth button connects the device to an external device via Bluetooth, allowing the external device to receive data. Regarding pin connections, pin 41 of the CH579M chip is connected to the Bluetooth button.

[0023] The control chip is connected to a controllable boost circuit, which processes the battery voltage to enable the ultra-low power temperature and humidity monitor to operate. The controllable boost circuit uses the FS2114 chip, a DC-DC asynchronous rectifier-boost converter chip with an input voltage range of 2.6V-5.5V and a maximum output voltage of 12V. Typical applications include lithium battery input with outputs of 5V, 1.2A, or 9V, 0.6MA, or 12V, 300MA. In terms of pin connections, pins 0, 3, and 24 of the CH579M chip are connected to the FS2114 chip.

[0024] This invention retains only the working status LED indicator and necessary control buttons, which also helps reduce costs. The equipped Bluetooth function greatly facilitates the setting of device function parameters and the reading of recorded data during use. After completing the transportation task, the entire temperature and humidity data recorded throughout the journey can be read back locally via Bluetooth from a mobile phone or other device.

Claims

1. A temperature and humidity monitoring instrument with extremely low power consumption, characterized in that: The device includes a housing, and the circuit board inside the housing is equipped with a control chip, a 4G chip, and a controllable boost circuit connected to a dry cell battery. The control chip is also connected to a start button, an arrival button, and a Bluetooth button. When the control chip receives a signal from the start button, it uses only the dry cell battery for power. When the control chip receives a signal from the arrival button, the dry cell battery supplies power to the controllable boost circuit.

2. The ultra-low power temperature and humidity monitoring instrument according to claim 1, characterized in that: The control chip uses a CH579M chip with a built-in Bluetooth module and is connected to a Bluetooth antenna.

3. The ultra-low power temperature and humidity monitoring instrument according to claim 1, characterized in that: The 4G chip is an ML307R chip, and it is also connected to a 4G antenna.

4. The ultra-low power temperature and humidity monitoring instrument according to claim 1, characterized in that: The control chip is also connected to a USB interface.

5. The ultra-low power temperature and humidity monitor according to claim 1, characterized in that: The ultra-low power temperature and humidity monitor is also equipped with a SIM card slot for installing a SIM card to enable 4G communication.

6. The ultra-low power temperature and humidity monitor according to claim 2, characterized in that: The CH579M chip has pin 39 connected to the start button, pin 40 connected to the arrival button, and pin 41 connected to the Bluetooth button.

7. The ultra-low power temperature and humidity monitoring instrument according to claim 2, characterized in that: Pins 4, 5, and 6 of the CH579M chip are connected to the ML307R chip of the 4G chip, and pin 23 is connected to pin 15 of the ML307R chip to realize the reset of the ML307R chip.

8. The ultra-low power temperature and humidity monitoring instrument according to claim 2, characterized in that: The controllable boost circuit uses the FS2114 chip, and pins 0, 3 and 24 of the CH579M chip are connected to the FS2114 chip.

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