Temperature and humidity acquisition device with sound and light alarm function

Abstract

The utility model provides a humiture acquisition device with an acousto-optic alarm function, comprising an Internet of Things wireless humiture recorder and a probe, the probe is internally provided with a humiture sensor and an acousto-optic alarm, and the acousto-optic alarm and the humiture sensor share the same signal line. The audible and visual alarm comprises a signal comparison circuit and an audible and visual alarm circuit, the signal comparison circuit is used for comparing signals of the CLK signal end and the DAT signal end to prevent false alarm, and the audible and visual alarm circuit is provided with a light-emitting diode (LED) and a loudspeaker so that the audible and visual alarm circuit can give an alarm according to the signals sent by the Internet of Things wireless temperature and humidity recorder. According to the utility model, the signal line of the humiture acquisition device is led out and connected to the audible and visual alarm, and the audible and visual alarm and the humiture sensor are connected to two slave devices on the same bus, so that the system is convenient to connect and has an audible and visual alarm effect.

Description

Technical Field

[0001] The utility model relates to a temperature and humidity collection device, in particular to a temperature and humidity collection device with sound and light alarm functions. Background Art

[0002] In the process of medicine storage and transportation, a high-precision temperature and humidity information collection device is needed, and the device is required to have high-precision temperature and humidity collection, short-distance information collection, and long-distance information collection and transmission functions. The device is also required to have good waterproof and dustproof functions, especially requiring the battery to have a long working standby time and be light and thin. Especially for freight vehicles with separated front and compartments, the temperature and humidity information collected in the compartment needs to be transmitted to the collection management host at the front of the vehicle through the LORA signal, and then the information is uploaded to the cloud platform through the management host.

[0003] Patent application number 202320593574.9 provides an ultra-low power consumption dual wireless temperature and humidity collection device, but the device lacks a direct alarm function and cannot intuitively send out an alarm signal when the battery power is low or the collected data is abnormal. Utility Model Content

[0004] The utility model provides a temperature and humidity collection device with sound and light alarm function, which solves the problem of realizing the sound and light alarm function for the temperature and humidity collection device. The technical solution is as follows:

[0005] A temperature and humidity collection device with sound and light alarm function comprises an Internet of Things wireless temperature and humidity recorder and a probe, wherein a temperature and humidity sensor and a sound and light alarm are arranged inside the probe, wherein the sound and light alarm and the temperature and humidity sensor share the same signal line, wherein the sound and light alarm comprises a signal comparison circuit and a sound and light alarm circuit, wherein the signal comparison circuit is used to compare signals at a CLK signal end and a DAT signal end to prevent false alarms, and wherein the sound and light alarm circuit is provided with a light emitting diode (LED) and a loudspeaker to sound an alarm according to a signal sent by the Internet of Things wireless temperature and humidity recorder.

[0006] The signal comparison circuit includes a first transistor VT1, a first resistor R1, a second resistor R2, a capacitor C1 and multiple diodes. The collector of the first transistor VT1 is connected to the positive voltage electrode through the second resistor R2, and the emitter of the first transistor VT1 is connected to the DAT signal line through two diodes, the two diodes are a first diode VD1 and a second diode VD2, a first resistor R1 and a third diode VD3 are arranged in parallel between the base of the first transistor VT1 and the CLK signal end, and the first resistor R1 and the base of the first transistor VT1 are grounded through the capacitor C1.

[0007] The sound and light alarm circuit includes a second transistor VT2 and a third transistor VT3, the emitter of the second transistor VT2 is connected to the positive pole of the voltage, the base is connected to the collector of the first transistor VT1 of the signal comparison circuit, the collector of the second transistor VT2 is connected to the light-emitting diode LED and the speaker, the other end of the light-emitting diode LED is grounded through a third resistor R3, and is connected to the base of the third transistor VT3 through a fourth resistor R4, the other end of the speaker is connected to the collector of the third transistor VT3, and the emitter of the third transistor VT3 is grounded.

[0008] The sound and light alarm is connected to the Internet of Things wireless temperature and humidity recorder through an IIC signal line, and the signal line includes a CLK signal line and a DAT signal line, which are respectively led out from the CLK signal terminal and the DAT signal terminal of the Internet of Things wireless temperature and humidity recorder.

[0009] The circuit board inside the IoT wireless temperature and humidity recorder is provided with a CPU control chip and a Lora-RF chip, an LCD module, a storage chip and buttons respectively connected to the CPU control chip, and also includes a USB TYPE-C interface for providing charging and data transmission and charging.

[0010] The Lora-RF module adopts the SX1278 chip, and the CPU control chip adopts the CH579M chip.

[0011] The CPU control chip is also connected to the LCD module of the LCD display screen through the VKL060 chip.

[0012] The storage chip adopts FLASH Q64.

[0013] The temperature and humidity collection device with sound and light alarm function leads out the signal line of the temperature and humidity collection device and connects it to the sound and light alarm. The relationship between the sound and light alarm and the temperature and humidity sensor is that they are two slave devices connected to the same bus. The utility model is convenient to connect and has the sound and light alarm effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a circuit diagram of the Internet of Things wireless temperature and humidity recorder of the temperature and humidity collection device with sound and light alarm function;

[0015] Figure 2 It is a structural schematic diagram of the temperature and humidity collection device with sound and light alarm functions. DETAILED DESCRIPTION

[0016] The temperature and humidity collection device with sound and light alarm function comprises an Internet of Things wireless temperature and humidity recorder 100 and a probe, wherein a temperature and humidity sensor 200 and a sound and light alarm are arranged inside the probe, and the sound and light alarm and the temperature and humidity sensor 200 share the same signal line.

[0017] like Figure 1 As shown, the IoT wireless temperature and humidity recorder 100 is provided with a CPU control chip and a Lora-RF chip, an LCD module, a storage chip and a key (KEY) respectively connected to the CPU control chip, and also includes a USB TYPE-C interface for providing charging and data transmission and charging. The Lora-RF module adopts the SX1278 chip, which is a multi-channel spread spectrum communication Lora transceiver chip, which has the characteristics of long communication distance and strong anti-interference ability. The Lora-RF module is connected to the Lora antenna to realize Lora wireless transmission.

[0018] The CPU control chip adopts CH579M chip, which is a domestically produced high-performance, low-power 32-bit ARM chip with a built-in Bluetooth transceiver. By connecting the Bluetooth antenna, the Bluetooth communication function is realized, which is convenient for signal transmission and on-site setting and management during use. The Bluetooth function maintains ultra-low power consumption and the working monitoring state can work for more than one year. In addition to the built-in Bluetooth function, the CPU control chip can also be used to control LORA communication. During the sampling interval, the chip enters a deep sleep state.

[0019] The CPU control chip is also connected to the LCD module of the LCD display screen through the VKL060 chip. The data display of the LCD display screen is refreshed by the ultra-low power chip. In this way, the CPU control chip can enter deep sleep during monitoring intervals, and only the VKL060 performs LCD screen refresh display under micro power consumption. The storage chip uses FLASH Q64 to achieve data storage. The Internet of Things wireless temperature and humidity recorder 100 is provided with a battery compartment, which is powered by a built-in battery.

[0020] The utility model is placed outside the medicine incubator and uses an external probe, which is connected to the medicine incubator to facilitate the measurement of temperature and humidity in the medicine incubator. The utility model uses its built-in Bluetooth transceiver to conveniently transmit the recorded parameters to a nearby mobile phone, PC or Bluetooth printer at high speed. Its internal LORA wireless transmission can transmit the collected information to a nearby collection device 1 km away for real-time monitoring.

[0021] like Figure 2As shown, the sound and light alarm is connected to the wireless temperature and humidity recorder 100 of the Internet of Things via an IIC signal line, and the signal line includes a CLK signal line and a DAT signal line, which are respectively drawn from the CLK signal terminal and the DAT signal terminal of the wireless temperature and humidity recorder 100 of the Internet of Things. The CLK signal line is used to control the clock timing, and the DAT signal line is used to transmit data. The sound and light alarm includes a signal comparison circuit and a sound and light alarm circuit, and the signal comparison circuit is used to compare the signals of the CLK signal terminal and the DAT signal terminal to prevent false alarms. The sound and light alarm circuit is provided with a light emitting diode LED and a speaker 101, so that it can alarm according to the signal sent by the wireless temperature and humidity recorder 100 of the Internet of Things.

[0022] The signal comparison circuit includes a first transistor VT1, a first resistor R1, a second resistor R2, a capacitor C1 and multiple diodes. The collector of the first transistor VT1 is connected to the positive voltage electrode through the second resistor R2, and the emitter of the first transistor VT1 is connected to the DAT signal line through two diodes, the two diodes are a first diode VD1 and a second diode VD2, a first resistor R1 and a third diode VD3 are arranged in parallel between the base of the first transistor VT1 and the CLK signal end, and the first resistor R1 and the base of the first transistor VT1 are grounded through the capacitor C1.

[0023] The sound and light alarm circuit includes a second transistor VT2 and a third transistor VT3, the emitter of the second transistor VT2 is connected to the positive pole of the voltage, the base is connected to the collector of the first transistor VT1, the collector of the second transistor VT2 is connected to the light-emitting diode LED and the speaker 101, the other end of the light-emitting diode LED is grounded through a third resistor R3, and is connected to the base of the third transistor VT3 through a fourth resistor R4, the other end of the speaker 101 is connected to the collector of the third transistor VT3, and the emitter of the third transistor VT3 is grounded.

[0024] When in use, redundant CLK signals are filtered out through a signal comparison circuit. When the temperature and humidity data obtained by the temperature and humidity sensor exceeds a preset alarm interval, the recorder drives the light emitting diode LED and the speaker 101 to sound an alarm through CLK and DAT signals.

[0025] The temperature and humidity collection device with sound and light alarm function leads out the signal line of the temperature and humidity collection device and connects it to the sound and light alarm. The relationship between the sound and light alarm and the temperature and humidity sensor is that they are two slave devices connected to the same bus. The utility model is convenient to connect and has the sound and light alarm effect.

Claims

1. A temperature and humidity collection device with sound and light alarm function, characterized in that: It comprises an Internet of Things wireless temperature and humidity recorder and a probe. The probe is provided with a temperature and humidity sensor and an audible and visual alarm. The audible and visual alarm and the temperature and humidity sensor share the same signal line. The audible and visual alarm comprises a signal comparison circuit and an audible and visual alarm circuit. The signal comparison circuit is used to compare the signals at the CLK signal end and the DAT signal end to prevent false alarms. The audible and visual alarm circuit is provided with a light-emitting diode (LED) and a loudspeaker to sound an alarm according to the signal sent by the Internet of Things wireless temperature and humidity recorder.

2. The temperature and humidity collection device with sound and light alarm function according to claim 1 is characterized in that: The signal comparison circuit includes a first transistor VT1, a first resistor R1, a second resistor R2, a capacitor C1 and multiple diodes. The collector of the first transistor VT1 is connected to the positive voltage electrode through the second resistor R2, and the emitter of the first transistor VT1 is connected to the DAT signal line through two diodes, the two diodes are a first diode VD1 and a second diode VD2, a first resistor R1 and a third diode VD3 are arranged in parallel between the base of the first transistor VT1 and the CLK signal end, and the first resistor R1 and the base of the first transistor VT1 are grounded through the capacitor C1.

3. The temperature and humidity collection device with sound and light alarm function according to claim 1 is characterized in that: The sound and light alarm circuit includes a second transistor VT2 and a third transistor VT3, the emitter of the second transistor VT2 is connected to the positive pole of the voltage, the base is connected to the collector of the first transistor VT1 of the signal comparison circuit, the collector of the second transistor VT2 is connected to the light-emitting diode LED and the speaker, the other end of the light-emitting diode LED is grounded through a third resistor R3, and is connected to the base of the third transistor VT3 through a fourth resistor R4, the other end of the speaker is connected to the collector of the third transistor VT3, and the emitter of the third transistor VT3 is grounded.

4. The temperature and humidity collection device with sound and light alarm function according to claim 1 is characterized in that: The sound and light alarm is connected to the Internet of Things wireless temperature and humidity recorder through an IIC signal line, and the signal line includes a CLK signal line and a DAT signal line, which are respectively led out from the CLK signal terminal and the DAT signal terminal of the Internet of Things wireless temperature and humidity recorder.

5. The temperature and humidity collection device with sound and light alarm function according to claim 1 is characterized in that: The circuit board inside the IoT wireless temperature and humidity recorder is provided with a CPU control chip and a Lora-RF chip, an LCD module, a storage chip and buttons respectively connected to the CPU control chip, and also includes a USBTYPE-C interface for providing charging and data transmission and charging.

6. The temperature and humidity collection device with sound and light alarm function according to claim 5, characterized in that: The Lora-RF chip adopts the SX1278 chip, and the CPU control chip adopts the CH579M chip.

7. The temperature and humidity collection device with sound and light alarm function according to claim 5 is characterized in that: The CPU control chip is also connected to the LCD module of the LCD display screen through the VKL060 chip.

8. The temperature and humidity collection device with sound and light alarm function according to claim 5 is characterized in that: The storage chip adopts FLASH Q64.

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