Handheld ultrasonic meteorological instrument

Abstract

The utility model relates to the technical field of ultrasonic meteorological monitoring, in particular to a handheld ultrasonic meteorological instrument, which supplies power to a control module, an ultrasonic sensor and a communication module through a power supply module. According to the utility model, the ultrasonic sensor is used for acquiring the meteorological data, then the control module is used for transmitting the meteorological data to the communication module, and finally the communication module is used for directly transmitting the meteorological data to the terminal equipment, so that the real-time performance is relatively high, manual recording is not needed, the workload is greatly reduced, and the error probability is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to ultrasonic weather monitoring technical field especially is hand -held ultrasonic weather meter. BACKGROUND

[0002] Ultrasonic weather meter is the instrument that uses ultrasonic technology to detect meteorological elements, transmits ultrasonic pulse through ultrasonic transmitter, and is received by receiver after atmospheric propagation. Utilize the characteristic that the propagation time, speed and other parameters change when ultrasonic propagates in air, are influenced by wind speed, wind direction, temperature, humidity and other factors to measure meteorological elements.

[0003] In order to detect meteorological elements at any time and anywhere, hand -held ultrasonic weather meter is widely applied, and the operator can carry hand -held ultrasonic weather meter to any environment and carry out meteorological data detection.

[0004] The existing hand -held ultrasonic weather meter mostly displays meteorological data on the display screen, and data reading and collection are carried out manually, and then the collected data is recorded to terminal, is transmitted to rear data center through terminal, and the real -time performance is poor, and in continuous monitoring scene, the meteorological data to be collected is more, and time and energy are consumed and error is easy. Further, in the scene of insufficient light (such as night, tunnel), limited vision (such as narrow space) and so on, it is difficult for human to read the value.

[0005] Therefore, overcoming the defects of the prior art is an urgent problem to be solved in the technical field. UTILITY MODEL CONTENT

[0006] The technical problem solved by the utility model is that the existing hand -held ultrasonic weather meter needs manual reading of meteorological data, which can cause poor real -time performance, time and energy consumption and error.

[0007] The utility model adopts the following technical scheme:

[0008] Firstly, a hand -held ultrasonic weather meter is provided, which comprises a control module, an ultrasonic sensor, a communication module and a power module.

[0009] The power module is connected with the control module, the ultrasonic sensor and the communication module respectively, and the control module is connected with the ultrasonic sensor and the communication module respectively.

[0010] The power module is used for power supply of the control module, the ultrasonic sensor and the communication module.

[0011] The ultrasonic sensor is used for obtaining meteorological data, the control module is used for transmitting the meteorological data to the communication module, and the communication module is used for transmitting the meteorological data to terminal equipment.

[0012] Preferably, the communication module comprises a first communication unit, a second communication unit and a third communication unit;

[0013] The first communication unit, the second communication unit and the third communication unit are connected with the control module and the power module respectively;

[0014] The first communication unit is used for communicating with a terminal device through a network operator;

[0015] The second communication unit is used for communicating with a terminal device through WIFI or Bluetooth;

[0016] The third communication unit is used for communicating with a terminal device through USB.

[0017] Preferably, the first communication unit comprises a communication chip, a SIM card interface subunit, a power management subunit and a first power control subunit; the communication chip is connected with the control module, the SIM card interface subunit is connected with the communication chip; the power management subunit is connected with the control module, the communication chip and the power module respectively; the first power control subunit is connected with the control module and the communication chip respectively.

[0018] Preferably, the first power control subunit comprises a start-up control circuit and a shutdown control circuit;

[0019] The start-up control circuit comprises a current-limiting resistor R2, a pull-down resistor R3 and a switch tube QN1; one end of the current-limiting resistor R2 is connected with the control module, the other end of the current-limiting resistor R2 is connected with one end of the pull-down resistor R3 and a control end of the switch tube QN1 respectively, the other end of the pull-down resistor R3 is grounded; one end of the switch tube QN1 is connected with the communication chip, the other end of the switch tube QN1 is grounded;

[0020] The shutdown control circuit comprises a current-limiting resistor R4, a pull-down resistor R6 and a switch tube QN2; one end of the current-limiting resistor R4 is connected with the control module, the other end of the current-limiting resistor R4 is connected with one end of the pull-down resistor R6 and a control end of the switch tube QN2 respectively, the other end of the pull-down resistor R6 is grounded; one end of the switch tube QN2 is connected with the communication chip, the other end of the switch tube QN2 is grounded.

[0021] Preferably, the third communication unit comprises a USB interface subunit, an electrostatic protection subunit and a second power supply control subunit;

[0022] The electrostatic protection subunit is connected with the USB interface subunit, and the USB interface subunit is connected with the control module; the second power supply control subunit is connected with the control module and the USB interface subunit respectively.

[0023] Preferably, the power supply module comprises a battery protection switch unit, a main power supply unit and a charging management unit;

[0024] The battery protection switch unit is connected with the battery, the control module, the main power supply unit and the charging management unit respectively;

[0025] The main power supply unit is further connected with the communication module and the control module;

[0026] The charging management unit is further connected with the USB interface subunit and the control module.

[0027] Preferably, the charging management unit comprises a switch control subunit and a charging management chip; the switch control subunit is connected with the USB interface subunit and the charging management chip respectively, and the charging management chip is further connected with the control module and the battery respectively;

[0028] The switch control subunit comprises a pull-down resistor R33, a switch tube QP6, a current-limiting resistor R39, a pull-down resistor R40 and a switch tube QN8;

[0029] One end of the pull-down resistor R33 and one end of the switch tube QP6 are connected with the USB interface subunit;

[0030] One end of the current-limiting resistor R39 is connected with the control module, and the other end of the current-limiting resistor R39 is connected with the control end of the switch tube QN8 and one end of the pull-down resistor R40 respectively;

[0031] The other end of the pull-down resistor R40 is grounded, one end of the switch tube QN8 is grounded, and the other end of the switch tube QN8 is connected with the other end of the pull-down resistor R33 and the control end of the switch tube QP6 respectively;

[0032] The other end of the switch tube QP6 is connected with the voltage input end of the charging management chip, and the voltage output end of the charging management chip is connected with the battery, for charging the battery.

[0033] Preferably, the main power supply unit comprises a boost chip and a voltage stabilizer chip; the input end of the boost chip is connected with the battery protection switch unit; the output end of the boost chip is used for outputting a first voltage to the corresponding module or unit for power supply; the output end of the boost chip is connected with the input end of the voltage stabilizer chip, and the output end of the voltage stabilizer chip is used for outputting a second voltage to the corresponding module or unit for power supply.

[0034] Preferably, the sensor module is further connected with the control module and the ultrasonic sensor.

[0035] The sensor module comprises a receiver chip and a receiving control unit; the receiver chip is connected with the control module and the ultrasonic sensor; and the receiving control unit is connected with the receiver chip and the control module.

[0036] The receiving control unit comprises a current-limiting resistor R25, a pull-down resistor R28, a switch tube QN6, a pull-down resistor R22, a switch tube QP2 and a connection joint.

[0037] One end of the pull-down resistor R22 and one end of the switch tube QP2 are connected with the power supply module.

[0038] One end of the current-limiting resistor R25 is connected with the control module, and the other end of the current-limiting resistor R25 is connected with the control end of the switch tube QN6 and one end of the pull-down resistor R28.

[0039] The other end of the pull-down resistor R28 is grounded, one end of the switch tube QN6 is grounded, and the other end of the switch tube QN6 is connected with the other end of the pull-down resistor R22 and the control end of the switch tube QP2.

[0040] The other end of the switch tube QP2 is connected with the control end of the connection joint, and the output end of the connection joint is connected with the ultrasonic sensor.

[0041] Preferably, the display module is further connected with the control module.

[0042] Compared with the prior art, the utility model has the advantages that:

[0043] The utility model discloses a power module is supplied with the control module, the ultrasonic sensor and the communication module, and the ultrasonic sensor obtains meteorological data, then the control module is transmitted to the communication module, finally the communication module directly transmits the meteorological data to the terminal equipment, has higher real -time nature, does not need manual record, and greatly reduces the work load, reduces the error probability. BRIEF DESCRIPTION OF DRAWINGS

[0044] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0045] Figure 1 is a structural schematic diagram of a hand-held ultrasonic weather meter provided by the embodiment of the present application;

[0046] Figure 2 is a structural schematic diagram of an instrument body of a hand-held ultrasonic weather meter provided by the embodiment of the present application;

[0047] Figure 3 is a structural schematic diagram of a control module provided by the embodiment of the present application;

[0048] Figure 4 is a specific structural schematic diagram of a hand-held ultrasonic weather meter provided by the embodiment of the present application;

[0049] Figure 5 is a structural schematic diagram of a storage module provided by the embodiment of the present application;

[0050] Figure 6 is a structural schematic diagram of a first communication unit provided by the embodiment of the present application;

[0051] Figure 7 is a structural schematic diagram of a communication chip provided by the embodiment of the present application;

[0052] Figure 8 is a structural schematic diagram of a SIM card interface subunit provided by the embodiment of the present application;

[0053] Figure 9 is a structural schematic diagram of a power management subunit provided by the embodiment of the present application;

[0054] Figure 10 is a structural schematic diagram of a second communication unit provided by the embodiment of the present application;

[0055] Figure 11 is a structural schematic diagram of a transfer switch provided by the embodiment of the present application;

[0056] Figure 12 is a structural schematic diagram of a third communication unit provided by the embodiment of the present application;

[0057] Figure 13 is a structural schematic diagram of a power module provided by an embodiment of the present application;

[0058] Figure 14 is a structural schematic diagram of a battery protection switch unit provided by an embodiment of the present application;

[0059] Figure 15 is a structural schematic diagram of a charging management unit provided by an embodiment of the present application;

[0060] Figure 16 is a structural schematic diagram of a boost chip provided by an embodiment of the present application;

[0061] Figure 17 is a structural schematic diagram of a voltage stabilizing chip provided by an embodiment of the present application;

[0062] Figure 18 is a structural schematic diagram of a sensing module provided by an embodiment of the present application;

[0063] Figure 19 is a structural schematic diagram of a connector provided by an embodiment of the present application;

[0064] Figure 20 is a structural schematic diagram of a display control unit provided by an embodiment of the present application;

[0065] Figure 21 is a structural schematic diagram of an instrument body provided by an embodiment of the present application. DETAILED DESCRIPTION

[0066] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0067] Unless otherwise required by context, the term "including" as used herein is to be interpreted as open-ended, that is, to the effect that "including, but not limited to". Also, the term "one embodiment" or "an embodiment" as used herein is to be interpreted to mean that a particular feature, structure, material, or characteristic is included in at least one embodiment or by an example of an embodiment. As such, the appearance of the phrases "in one embodiment" or "an embodiment" in various places throughout the specification are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0068] In the description of the present application, the terms "first", "second", etc. are used only for the purpose of description, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise stated, the meaning of "a plurality of" is two or more. In addition, for example, in the description, the same type of nouns can also be described as two independent individuals by adding "A" and "B" at the end. In this case, the features limited by "A" and "B" are only used for the purpose of distinguishing the same type of individual description, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated.

[0069] In describing some embodiments, "coupled", "coupling", and "connected" and their derivatives can be used. For example, the term "connected" can be used to describe some embodiments to indicate that two or more components have direct physical or electrical contact with each other. For another example, the term "coupling" can be used to describe some embodiments to indicate that two or more components have direct physical or electrical contact. However, the term "connected" or "coupled" can also refer to two or more components that do not have direct contact with each other, but still cooperate or interact with each other, such as "optical coupling", "wireless connection", etc. The embodiments disclosed herein are not necessarily limited to the content of the present application.

[0070] In addition, the technical features involved in each embodiment of the present application described below can be combined with each other as long as there is no conflict.

[0071] Embodiment 1:

[0072] In order to solve the problems of the prior art, the present embodiment provides a handheld ultrasonic weather meter, as shown inFigure 1 As shown in the figure, the handheld ultrasonic weather meter comprises a control module, an ultrasonic sensor, a communication module and a power module; the power module is connected with the control module, the ultrasonic sensor and the communication module respectively; the control module is connected with the ultrasonic sensor and the communication module respectively; the power module is used for powering the control module, the ultrasonic sensor and the communication module; the ultrasonic sensor is used for acquiring weather data, the control module is used for transmitting the weather data to the communication module, and the communication module is used for transmitting the weather data to a terminal device.

[0073] It is worth noting that the control module, the communication module and the power module are all arranged on a circuit board; as Figure 2 As shown in the figure, the handheld ultrasonic weather meter further comprises an instrument body, and the circuit board and the ultrasonic sensor are arranged at corresponding positions on the instrument body, and the specific structure of the instrument body will not be described in detail in this embodiment. In one embodiment, the ultrasonic sensor comprises an ultrasonic optical rain sensor, an ultrasonic wind speed sensor, an ultrasonic wind direction sensor, an ultrasonic temperature sensor, an ultrasonic humidity sensor and an ultrasonic air pressure sensor, etc., for acquiring different weather data.

[0074] In one embodiment, as Figure 3 As shown in the figure, the control module is a single-chip microcomputer or a microprocessor, which is used for acquiring weather data detected by the ultrasonic sensor, including wind speed, wind direction, temperature, humidity and air pressure, etc.; on the other hand, the acquired weather data can be preliminarily processed, such as filtering, calibration and data format conversion, etc., and finally the processed weather data is transmitted to the communication module, and the connection mode of the control module and other modules or units will be described in detail below. The communication module is used for realizing data interaction with the terminal device, and in one embodiment, the communication module can select appropriate communication mode and protocol according to different application scenarios and user needs to transmit weather data to the terminal device. The power module is used for providing stable power support for the entire handheld ultrasonic weather meter, and a lithium battery (such as a 18650 lithium battery) can be used as a power supply, and the battery can be managed for charging and discharging to ensure the safety and efficient use of the battery.

[0075] Next, the circuit structure of the handheld ultrasonic weather meter will be described in detail.

[0076] In order to realize communication with the terminal device, at least three communication modes are provided in this embodiment for different scenarios, and in one embodiment, as Figure 4As shown, the communication module includes a first communication unit, a second communication unit, and a third communication unit; the first communication unit, the second communication unit, and the third communication unit are respectively connected to the control module and the power module; the first communication unit is used to communicate with the terminal device through a network operator; the second communication unit is used to communicate with the terminal device through WIFI or Bluetooth; and the third communication unit is used to communicate with the terminal device through USB.

[0077] Among them, reference Figure 4 The first communication unit communicates with the terminal device through the network operator. The first communication unit includes a 4G / 5G module, which can remotely transmit meteorological data to a cloud server or remote terminal device through the mobile network, breaking through distance limitations and facilitating remote monitoring and management. This embodiment will use the 4G module as an example for explanation.

[0078] The second communication unit communicates with the terminal device via Wi-Fi or Bluetooth. It communicates with the mobile terminal (i.e., the terminal device) via Wi-Fi or Bluetooth signals. On the mobile terminal, users can use a corresponding mobile app to perform operations such as data reading, parameter configuration, and firmware upgrades. Bluetooth signals enable short-range, low-power data transmission, facilitating connection with nearby mobile terminals and other mobile devices, suitable for quickly viewing meteorological data on-site. Wi-Fi signals enable the handheld ultrasonic weather instrument to connect to a local area network, achieving rapid local transmission and sharing of meteorological data.

[0079] The third communication unit is used to communicate with terminal devices via USB. It can directly connect terminal devices such as computer terminals, mobile terminals, USB flash drives, and extenders to the handheld ultrasonic weather instrument via a USB data cable, enabling communication between multiple terminal devices and the handheld ultrasonic weather instrument, and achieving weather data sharing. In one embodiment, the third communication unit is also used to charge the battery; the specific charging method will be described below.

[0080] In one embodiment, different communication units are selected to communicate with terminal devices according to different usage scenarios in order to realize the transmission, sharing and processing of meteorological data.

[0081] In one embodiment, refer to Figure 5 The handheld ultrasonic weather instrument also includes a storage module (i.e., U7), which is used to store meteorological data, wherein, according to... Figure 3 and Figure 5The FL_NSS, FL_SCK, FL_MOSI, and FL_MISO pins on the storage module are respectively connected to the FL_NSS, FL_SCK, FL_MOSI, and FL_MISO pins on the control module.

[0082] In one embodiment, such as Figure 6 As shown, the first communication unit includes a communication chip, a SIM card interface subunit, a power management subunit, and a first power control subunit; the communication chip is connected to the control module (i.e., pins 17 (4G_TX) and 18 (4G_RX) on the communication chip are connected to the 4G_WB_TX and 4G_WB_RX pins on the control module, respectively), the SIM card interface subunit is connected to the communication chip; the power management subunit is connected to the control module, the communication chip, and the power module; the first power control subunit is connected to the control module and the communication chip.

[0083] Among them, reference Figure 7 and Figure 8 The SIM card interface subunit includes a SIM card socket (i.e., JSIM1), which is used to set up a SIM card. The SIM VCC pin, SIM RST pin, SIM CLK pin and SIM DAT pin on the SIM card interface subunit are respectively connected to the SIM VCC pin, SIM RST pin, SIM CLK pin and SIMDAT pin on the communication chip.

[0084] In one embodiment, refer to Figure 3 , Figure 7 and Figure 9 The VBAT terminal on the power management subunit is connected to the power module to receive the battery voltage (VBAT) and convert it to 4.2V to power the corresponding ports requiring 4.2V (see the corresponding attached diagram for details, which will not be elaborated further). The 4G_Pow_SW terminal on the power management subunit is connected to the 4G_Pow_SW terminal on the control module. The control module controls the switching of VBAT to 4.2V in the power management subunit via the 4G_Pow_SW terminal, thereby controlling the power supply path from the power module to the first communication unit. For a detailed description of the power management subunit's structure, please refer to [reference needed]. Figure 9 This will not be explained in detail in this embodiment.

[0085] In one embodiment, refer to Figure 3 and Figure 7, the first power control subunit includes a power-on control circuit and a power-off control circuit; the power-on control circuit includes a current-limiting resistor R2, a pull-down resistor R3, and a switch tube QN1; one end of the current-limiting resistor R2 is connected with the control module (i.e., a 4G_PWR pin on the control module), the other end of the current-limiting resistor R2 is connected with one end of the pull-down resistor R3 and a control end of the switch tube QN1 respectively, and the other end of the pull-down resistor R3 is grounded; one end of the switch tube QN1 is connected with the communication chip (i.e., a 7-pin, PWRKEY pin on the communication chip), and the other end of the switch tube QN1 is grounded.

[0086] Wherein, the control module controls the communication chip to power on by issuing a 4G_PWR signal, and the current-limiting resistor R2 is used to limit the current flowing into the gate of the switch tube QN1; the pull-down resistor R3 pulls down the gate of the switch tube QN1 to the ground, so that the switch tube QN1 is in a cut-off state when there is no control signal (i.e., 4G_PWR). When the 4G_PWR signal is at a high level, the current flows into the gate of the switch tube QN1 through the current-limiting resistor R2, so that the switch tube QN1 is turned on, and the PWRKEY pin in the communication chip is pulled low. In an embodiment, according to the power-on requirement, the PWRKEY pin is pulled low for at least 1 second or more, which can trigger the communication chip to power on; when the 4G_PWR signal is at a low level, the switch tube QN1 is cut off, the PWRKEY pin is at a high level, and the communication chip remains in a power-off or standby state.

[0087] In an embodiment, with reference to Figure 3 and Figure 7 , the power-off control circuit includes a current-limiting resistor R4, a pull-down resistor R6, and a switch tube QN2; one end of the current-limiting resistor R4 is connected with the control module (i.e., a 4G_RST pin on the control module), the other end of the current-limiting resistor R4 is connected with one end of the pull-down resistor R6 and a control end of the switch tube QN2 respectively, and the other end of the pull-down resistor R6 is grounded; one end of the switch tube QN2 is connected with the communication chip (i.e., a 15-pin, RESET_N pin on the communication chip), and the other end of the switch tube QN2 is grounded.

[0088] Wherein, the control module controls the communication chip to power off by issuing a 4G_RST signal, and the current-limiting resistor R4 is used to limit the current flowing into the gate of the switch tube QN2; the pull-down resistor R6 pulls down the gate of the switch tube QN2 to the ground, so that the switch tube QN2 is in a cut-off state when there is no control signal (i.e., 4G_RST). When the 4G_RST signal is at a high level, the current flows into the gate of the switch tube QN2 through the current-limiting resistor R4, so that the switch tube QN2 is turned on, and the RESET_N pin in the communication chip is pulled low, which can trigger the communication chip to power off.

[0089] In an embodiment, with reference toFigure 7 The first communication unit further comprises an antenna subunit (i.e., ANT1) and a display subunit; the antenna subunit is connected with the 35th pin (i.e., LTE ANT pin) on the communication chip for receiving antenna signals. The display subunit is connected with the 16th pin (i.e., NET STATUS pin) on the communication chip for displaying the networking status of the communication chip, including network indicator light search status, bright 200mS, dark 1800mS; standby status, bright 1800mS, dark 200mS; data status, bright 125mS, dark 125mS. For other structures of the first communication unit, please refer to Figure 7 In this embodiment, no further description is made.

[0090] In one embodiment, referring to Figure 3 and Figure 10 The second communication unit comprises a WIFI / Bluetooth integrated chip (i.e., U2), the enable pin (i.e., EN pin) on the WIFI / Bluetooth integrated chip is connected with the WB_EN (i.e., 33rd pin) on the control module, and the output pins (including WB_RX and WB_TX) on the WIFI / Bluetooth integrated chip are respectively connected with the 4G_WB_RX and 4G_WB_TX pins on the control module. The control module controls the WIFI / Bluetooth integrated chip to work by the WB_EN signal, and interacts with the WIFI / Bluetooth integrated chip by the 4G_WB_RX and 4G_WB_TX pins.

[0091] The communication chip in the first communication unit and the WIFI / Bluetooth integrated chip in the second communication unit are both connected with the 4G_WB_RX and 4G_WB_TX pins on the control module, in order to accurately transmit corresponding signals (4G signal, WIFI signal and Bluetooth signal), in one embodiment, as shown in Figure 11 , a transfer switch (i.e., U9) is further included, in one embodiment, referring to Figure 3 , Figure 7 and Figure 10The 17-pin 4G_TX and 18-pin 4G_RX on the communication chip are connected with the 3-pin 4G_TX and 7-pin 4G_RX on the relay switch respectively, the 14-pin WB_TX and 15-pin WB_RX on the WIFI / Bluetooth integrated chip are connected with the 2-pin WB_TX and 8-pin WB_RX on the relay switch respectively, the 1-pin IN on the relay switch is connected with the TTL_SW pin on the control module, the 4-pin DB and 6-pin DC on the relay switch are connected with the 4G_WB_TX and 4G_WB_RX pins on the control module respectively, the control module controls the output TTL_SW signal to turn on the communication line between the communication chip and the control module or the communication line between the WIFI / Bluetooth integrated chip and the control module.

[0092] In one embodiment, as shown in Figure 12 , the third communication unit comprises a USB interface subunit, an electrostatic protection subunit and a second power control subunit; the electrostatic protection subunit is connected with the USB interface subunit, and the USB interface subunit is connected with the control module; the second power control subunit is connected with the control module and the USB interface subunit respectively.

[0093] In one embodiment, as shown in Figure 3 and Figure 12 , the 3-pin, 4-pin and 5-pin on the USB interface subunit are connected with the USB_P, USB_N and USB_ID pins on the control module respectively. The electrostatic protection subunit is used to eliminate the influence of static electricity on the USB interface subunit, and the specific structure is shown in Figure 12 , which will not be described in detail in this embodiment.

[0094] In one embodiment, as shown in Figure 3 and Figure 12 , the second power control subunit is connected with the 5V-VBU_SW pin on the control module and the 1-pin on the USB interface subunit respectively, and the control module is used to output the 5V-VBU_SW signal to control the operation (power on or power off) of the USB interface subunit. The specific structure of the third communication unit is shown in Figure 12 , which will not be described in detail in this embodiment.

[0095] In order to power the modules or units in the handheld ultrasonic weather instrument, the power module is described in detail. In one embodiment, as shown in Figure 13As shown, the power module includes a battery protection switch unit, a main power supply unit and a charging management unit; the battery protection switch unit is connected with the battery, the control module, the main power supply unit and the charging management unit respectively; the main power supply unit is further connected with the communication module and the control module; the charging management unit is further connected with the USB interface subunit and the control module.

[0096] As shown in Figure 3 and Figure 14 As shown, the battery protection switch unit includes a battery interface, an anti-reverse connection part, a lithium battery charging and discharging protection chip part, a switching circuit part and a power conversion and signal output part.

[0097] In one embodiment, the battery interface (i.e. J7) adopts ZH1.5-4P-A interface for connecting lithium battery to provide power input for the entire circuit, and the 1-4 pins of the battery interface are used to realize electrical connection. The anti-reverse connection part includes a switch tube QN1 and a resistor R4, under normal circumstances, when the positive and negative poles of the battery are correctly connected, the gate of the switch tube QN1 obtains a suitable voltage through the resistor R4 to turn on, so that the battery is connected to the circuit; if the battery is reversed, the switch tube QN1 will not be turned on, thereby preventing reverse current from flowing into the circuit and avoiding damage to other elements.

[0098] The lithium battery charging and discharging protection chip part includes a protection chip (i.e. U1, the model can be FM2113), which mainly functions to prevent overcharging, overdischarging, overcurrent and short circuit of the lithium battery, and to protect the safety and service life of the battery. The VDD pin (5th pin) is a chip power supply pin connected to the positive pole of the battery; the VSS pin (6th pin) is grounded; the OD pin (3rd pin) and the CSI pin (2nd pin) are used to detect the overdischarging and overcurrent of the battery; the NC pin is a null pin. The resistor R5 is used for current detection or voltage division, the capacitor C2 is used for filtering, and the switch tube QN4 and the switch tube QN5 are used to cut off the connection between the battery and the external circuit when overcurrent or overvoltage protection action occurs.

[0099] The switch circuit part includes a lighted self-reset button (i.e., J2) for generating a PowKey_S signal to the control module, and a SysRun_LED indicator light for displaying the device state, different flashing frequencies and screen displays can distinguish the three states of charging and running, only charging, and only running, so that the user can understand the working condition of the device. In the shutdown state, long press the lighted self-reset button, if the control module detects that PowKey_S = 0 for more than 3 seconds, and the battery voltage VBAT > 3.3V, the control module outputs PowMCU_SW signal = 1, and the system starts. In the running state, long press the lighted self-reset button, if the control module detects that PowKey_S = 0 for more than 3 seconds, and the battery voltage VBAT < 3.2V, the control module outputs PowMCU_SW signal = 0, and the system powers off. Short press of the lighted self-reset button can be used for device wake-up and interface switching.

[0100] The power conversion and signal output part is used for converting the battery voltage VBAT (3V-4.2V) into VBAT_VIN (1.5V-2.1V) output, for powering the control module. For other structures of the battery protection switch unit, refer to Figure 14 , which will not be described in detail in this embodiment.

[0101] In order to realize charging of the battery through the USB interface, in an embodiment, as shown in Figure 3 , Figure 12 and Figure 15 , the charging management unit includes a switch control subunit and a charging management chip (i.e., U4); the switch control subunit is connected with the USB interface subunit (i.e., the USB_VBUS end of the USB interface subunit) and the charging management chip (i.e., the VIN pin of the charging management chip) respectively, and the charging management chip is also connected with the control module (i.e., the Charge_S end of the control module) and the battery (i.e., BAT) respectively; the switch control subunit includes a pull-down resistor R33, a switch tube QP6, a current-limiting resistor R39, a pull-down resistor R40, and a switch tube QN8; one end of the pull-down resistor R33 and one end of the switch tube QP6 are connected with the USB interface subunit; one end of the current-limiting resistor R39 is connected with the control module, and the other end of the current-limiting resistor R39 is connected with the control end of the switch tube QN8 and one end of the pull-down resistor R40 respectively; the other end of the pull-down resistor R40 is grounded, one end of the switch tube QN8 is grounded, and the other end of the switch tube QN8 is connected with the other end of the pull-down resistor R33 and the control end of the switch tube QP6 respectively; the other end of the switch tube QP6 is connected with the voltage input end of the charging management chip, and the voltage output end of the charging management chip is connected with the battery, for charging the battery.

[0102] When the USB interface is connected to a host device (such as a computer), the control module detects the relevant signal and outputs a Charge_SW = 1 signal, which, through the current-limiting resistor R39, makes the switch tube QN8 conductive, and in turn makes the switch tube QP6 conductive, so that the USB_VBUS voltage signal is transmitted to the voltage input end of the charging management chip. The charging management chip automatically adjusts the charging parameters for charging the battery according to the input voltage and the battery state. During this period, the battery state is constantly monitored, and the charging condition (i.e., the Charge_S signal) is fed back to the control module through the relevant pin (i.e., the CHRG pin). The Charge_S signal = 1 indicates that the battery is not being charged, and the Charge_S signal = 0 indicates that the battery is being charged. Without considering the worst case, the charging current can be as high as 1A. When the battery is fully charged, the charging management chip detects that the charging completion condition is met, and sends a charging completion signal to the control module through the CHRG pin. After receiving the charging completion signal, the control module outputs a corresponding Charge_SW = 0 signal to control the switch control subunit to disconnect the charging path of the battery and stop charging.

[0103] In one embodiment, as shown in Figure 16 and Figure 17 , the main power supply unit includes a boost chip (i.e., U5) and a voltage regulator chip (i.e., U3); as shown in Figure 14 and Figure 16 , the input end of the boost chip is connected to the battery protection switch unit (i.e., the VBAT end); the output end of the boost chip is used to output a first voltage (i.e., VCC5) to the corresponding module or unit for power supply; the output end of the boost chip is connected to the input end (i.e., the VIN pin) of the voltage regulator chip, and the output end (i.e., VCC3.3) of the voltage regulator chip is used to output a second voltage to the corresponding module or unit for power supply.

[0104] It is worth noting that all the input voltage ports shown in the input voltage ports of all the figures in the embodiment are connected to the output end of the boost chip, and the input voltage ports of VCC3.3 are connected to the output end of the voltage regulator chip. More specifically, in the embodiment, no further explanation is given.

[0105] In order to obtain the weather data detected by the ultrasonic sensor, in one embodiment, as shown in Figure 3 and Figure 18As shown, the handheld ultrasonic weather meter further comprises a sensing module, which is connected with the control module and the ultrasonic sensor respectively; the sensing module comprises a receiver chip (i.e., U2) and a receiving control unit, the receiver chip is connected with the control module and the ultrasonic sensor respectively; the receiving control unit is connected with the receiver chip and the control module respectively.

[0106] The Sensor_RX end, the Sensor_DIR end and the Sensor_TX end on the receiver chip are connected with the Sensor_RX end, the Sensor_DIR end and the Sensor_TX end on the control module respectively. The A pin (i.e., 485A) and the B pin (i.e., 485B) on the receiver chip are connected with different ultrasonic sensors respectively.

[0107] In one embodiment, as shown in Figure 3 and Figure 18 The receiving control unit comprises a current-limiting resistor R25, a pull-down resistor R28, a switch tube QN6, a pull-down resistor R22, a switch tube QP2 and a connecting joint; one end of the pull-down resistor R22 and one end of the switch tube QP2 are connected with the power module (i.e., VCC5); one end of the current-limiting resistor R25 is connected with the control module (SensorPow_SW), the other end of the current-limiting resistor R25 is connected with the control end of the switch tube QN6 and one end of the pull-down resistor R28 respectively; the other end of the pull-down resistor R28 is grounded, one end of the switch tube QN6 is grounded, the other end of the switch tube QN6 is connected with the other end of the pull-down resistor R22 and the control end of the switch tube QP2 respectively; the other end of the switch tube QP2 is connected with the control end (pin 1) of the connecting joint, the output end (pin 3 and pin 4) of the connecting joint is connected with the ultrasonic sensor.

[0108] When there is no corresponding control signal (i.e., SensorPow_SW), the pull-down resistor R28 makes the switch tube QN6 cut off, the pull-down resistor R22 makes the switch tube QP2 cut off, the connecting joint has no voltage output, and the ultrasonic sensor cannot transmit the acquired weather data back to the control module.

[0109] When it is needed to start the ultrasonic sensor to work, the control module outputs a high level control signal (i.e. SensorPow_SW) according to the working requirement, which flows into the control end of the switch tube QN6 through the current limiting resistor R25, so that the switch tube QN6 is turned on. After the switch tube QN6 is turned on, the control end potential of the switch tube QP2 is pulled down, the switch tube QP2 is turned on, and the voltage (i.e. VCC5) output by the power module is transmitted to the connecting joint through the switch tube QP2, and then supplied to the ultrasonic sensor, and the ultrasonic sensor starts to transmit the meteorological data.

[0110] When it is needed to stop the ultrasonic sensor to work, the control module outputs a low level control signal (i.e. SensorPow_SW), the switch tube QN6 is cut off under the action of the pull-down resistor R28, the switch tube QP2 is cut off under the action of the pull-down resistor R22, the connecting joint stops supplying power to the ultrasonic sensor, and the ultrasonic sensor stops working.

[0111] In order to obtain the corresponding meteorological data through the human eye, in an embodiment, as shown in Figure 3 、 Figure 19 and Figure 20 , the handheld ultrasonic meteorological instrument further comprises a display module, and the display module is connected with the control module.

[0112] The display module further comprises a display chip (not shown in the figure), a connector (i.e. J1) and a display control unit, and the model of the display chip can be ST7789T3. The display chip is connected with the connector, and the display control unit is connected with the control module and the connector respectively.

[0113] In an embodiment, the connector can adopt a FPC-30-0.5 flexible printed circuit board interface, which has 30 pins and is used for connecting a 1.69-inch touch color screen.

[0114] The plurality of pins (1 pin, 2 pin, 4 pin and 14 pin-25 pin) on the connector are connected with the control module (such as TP_SCL, TP_SDA, TP_INT and the like) respectively, and the display chip is used for converting the data sent by the control module into a signal recognizable by the display screen.

[0115] In an embodiment, as shown in Figure 3 and Figure 20As shown in the display control unit, VCC3.3 is connected with the power module, LED_VCC is connected with the 25th pin and the 26th pin on the connector, the control module controls the on-off of the LCD_VCC power supply through the LCD_VCC_SW signal, and the control of the power supply of the display screen is realized. The control module is also used for adjusting the duty cycle of the LED_VCC_SW signal through the PWM wave, controlling the conduction degree of the switch tube QP4, and then adjusting the LED_VCC voltage, so as to realize the adjustment of the screen backlight brightness. Other structures of the display module are not described in detail in the embodiment.

[0116] It is worth noting that all the contents about the method in the embodiment are prior art, which will not be described in detail in the embodiment. Further, the working principles of the structures not mentioned in the drawings can be obtained by referring to the corresponding drawings and the prior art, which will not be described in detail in the embodiment.

[0117] The utility model discloses a power module is given control module, ultrasonic sensor and communication module power supply, and through ultrasonic sensor obtains meteorological data, then through control module meteorological data transmission communication module, finally by communication module directly meteorological data transmission terminal equipment, has higher real -time, need not manual record, greatly reduce the workload, reduce error probability.

[0118] Embodiment 2:

[0119] In order to further illustrate the handheld ultrasonic weather instrument, the instrument body will be further described in the embodiment.

[0120] In one embodiment, as shown, Figure 21 The ultrasonic base 1 is used to provide a mounting position for the ultrasonic sensor, and the control module, the communication module, the power module and other circuits are arranged on the corresponding circuit board (not shown in the figure). The corresponding circuit board is arranged in the ultrasonic base 1, and the ultrasonic base needs to be waterproof and anti-pollution in actual use scenario. In one embodiment, the display screen 20 is arranged on the packaging shell 2 and is electrically connected with the display chip inside, for displaying corresponding meteorological data. The battery cavity 3 is used to accommodate the battery (not shown in the figure), and the USB / Typc interface (not shown in the figure) and the self-reset button 30 with light mentioned in embodiment 1 are arranged outside the battery cavity 3.

[0121] The circuit part of the handheld ultrasonic weather instrument is referred to embodiment 1, which will not be described in detail in the embodiment.

[0122] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A hand-held ultrasonic meteorological instrument, characterized in that The application relates to a meteorological data acquisition device. The device comprises a control module, an ultrasonic sensor, a communication module and a power module. The power module is connected with the control module, the ultrasonic sensor and the communication module. The power module is used for supplying power to the control module, the ultrasonic sensor and the communication module. The ultrasonic sensor is used for acquiring meteorological data, the control module is used for transmitting the meteorological data to the communication module, and the communication module is used for transmitting the meteorological data to a terminal device.

2. The hand-held ultrasonic meteorological instrument according to claim 1, characterized in that The communication module comprises a first communication unit, a second communication unit and a third communication unit. The first communication unit, the second communication unit and the third communication unit are connected with the control module and the power module. The first communication unit is used for communicating with the terminal device through a network operator. The second communication unit is used for communicating with the terminal device through WIFI or Bluetooth. The third communication unit is used for communicating with the terminal device through USB.

3. The hand-held ultrasonic weather meter of claim 2, wherein, The first communication unit comprises a communication chip, a SIM card interface subunit, a power management subunit and a first power control subunit. The first power control subunit is connected with the control module and the communication chip.

4. The hand-held ultrasonic meteorological instrument according to claim 3, characterized in that The first power control subunit comprises a start-up control circuit and a shutdown control circuit. The start-up control circuit comprises a current-limiting resistor R2, a pull-down resistor R3 and a switch tube QN1. The shutdown control circuit comprises a current-limiting resistor R4, a pull-down resistor R6 and a switch tube QN2.

5. The hand-held ultrasonic weather meter of claim 2, wherein, The third communication unit comprises a USB interface subunit, an electrostatic protection subunit and a second power control subunit. The electrostatic protection subunit is connected with the USB interface subunit, and the USB interface subunit is connected with the control module. The second power control subunit is connected with the control module and the USB interface subunit.

6. The hand-held ultrasonic meteorological instrument according to claim 5, characterized in that The power module comprises a battery protection switch unit, a main power unit and a charging management unit. The battery protection switch unit is connected with the battery, the control module, the main power supply unit and the charging management unit respectively; The main power supply unit is also connected with the communication module and the control module; The charging management unit is also connected with the USB interface subunit and the control module.

7. The hand-held ultrasonic meteorological instrument according to claim 6, characterized in that The charging management unit comprises a switch control subunit and a charging management chip; the switch control subunit is connected with the USB interface subunit and the charging management chip respectively; the charging management chip is also connected with the control module and the battery respectively; The switch control subunit comprises a pull-down resistor R33, a switch tube QP6, a current-limiting resistor R39, a pull-down resistor R40 and a switch tube QN8; One end of the pull-down resistor R33 and one end of the switch tube QP6 are connected with the USB interface subunit; One end of the current-limiting resistor R39 is connected with the control module; the other end of the current-limiting resistor R39 is connected with the control end of the switch tube QN8 and one end of the pull-down resistor R40 respectively; The other end of the pull-down resistor R40 is grounded; one end of the switch tube QN8 is grounded; the other end of the switch tube QN8 is connected with the other end of the pull-down resistor R33 and the control end of the switch tube QP6 respectively; The other end of the switch tube QP6 is connected with the voltage input end of the charging management chip; the voltage output end of the charging management chip is connected with the battery for charging the battery.

8. The hand-held ultrasonic meteorological instrument according to claim 6, characterized in that The main power supply unit comprises a boost chip and a voltage stabilizer chip; the input end of the boost chip is connected with the battery protection switch unit; the output end of the boost chip is used for outputting a first voltage to the corresponding module or unit for power supply; the output end of the boost chip is connected with the input end of the voltage stabilizer chip; the output end of the voltage stabilizer chip is used for outputting a second voltage to the corresponding module or unit for power supply.

9. The hand-held ultrasonic meteorological instrument of claim 1, wherein, A sensing module is further included, which is connected with the control module and the ultrasonic sensor respectively; The sensing module comprises a receiver chip and a receiving control unit; the receiver chip is connected with the control module and the ultrasonic sensor respectively; the receiving control unit is connected with the receiver chip and the control module respectively; The receiving control unit comprises a current-limiting resistor R25, a pull-down resistor R28, a switch tube QN6, a pull-down resistor R22, a switch tube QP2 and a connection joint; One end of the pull-down resistor R22 and one end of the switch tube QP2 are connected with the power supply module; One end of the current-limiting resistor R25 is connected with the control module; the other end of the current-limiting resistor R25 is connected with the control end of the switch tube QN6 and one end of the pull-down resistor R28 respectively; The other end of the pull-down resistor R28 is grounded; one end of the switch tube QN6 is grounded; the other end of the switch tube QN6 is connected with the other end of the pull-down resistor R22 and the control end of the switch tube QP2 respectively; The other end of the switch tube QP2 is connected with the control end of the connection joint, and the output end of the connection joint is connected with the ultrasonic sensor.

10. The hand-held ultrasonic meteorological instrument of claim 1, wherein, The display module is further included, and the display module is connected with the control module.

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