Multifunctional pressure transmitter acquisition terminal

Abstract

The utility model provides a multifunctional pressure transmitter acquisition terminal, which belongs to the technical field of acquisition terminals and comprises a shell, a pressure transmitter acquisition terminal circuit board is mounted in the shell and comprises a master control system, and the master control system is connected with the pressure transmitter acquisition terminal circuit board. The main control system is connected with a power supply management system, a charging and discharging system, a power supply circuit, a current acquisition circuit, a voltage acquisition circuit, an IC acquisition circuit and an RS485 acquisition circuit, the current acquisition circuit is connected with a current acquisition terminal, the voltage acquisition circuit is connected with a voltage acquisition terminal, the IC acquisition circuit is connected with an IC acquisition terminal, and the RS485 acquisition circuit is connected with an RS485 acquisition terminal; according to the utility model, microminiaturization, high integration, multiple interfaces and wireless communication are integrated, compatibility is strong, compatibility with third-party transmitters with standard output signals in the market can be realized, and multiple transmitters can be debugged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of collection terminal, specifically relates to a multifunctional pressure transmitter collection terminal. BACKGROUND

[0002] With the rapid development of science and technology, the intelligent pressure transmitter in the pressure monitoring industry is various, and the production and on-site debugging of the transmitter also have strong demand for debugging tools.

[0003] However, in the existing technical system, the debugging tool of the intelligent pressure transmitter has the following problems: first, since the interface and function of each intelligent pressure transmitter are different, the corresponding tool is also various, which not only increases the complexity of production and debugging, but also makes the tool management in the debugging process extremely complicated; second, the existing debugging tool often uses a single communication mode, so when debugging transmitters with different functions, the tool needs to be replaced or complex settings need to be adjusted, which not only reduces the debugging efficiency, but also increases the operation difficulty and error rate; third, the existing debugging tool needs to use a special communication cable to connect the tool and the computer, which not only limits the universality of the debugging tool, but also makes the debugging process less convenient, especially in on-site debugging, the special communication cable is often difficult to carry and store, which brings great inconvenience to the debugging work; in addition, the existing debugging tool has low integration, which can only debug the corresponding transmitter and cannot debug third-party transmitters, limiting the application range of the debugging tool and making users have to consider the compatibility of the debugging tool when selecting it; finally, the existing intelligent pressure transmitter often has a deviation after long-term use and needs to be calibrated, but the existing calibration process often needs to be returned to the factory for operation, which not only prolongs the calibration period, but also increases the downtime and maintenance cost of the user.

[0004] In summary, the existing intelligent pressure transmitter debugging tool has the above problems, and a more universal, convenient, efficient, high-integration, low-cost and on-site calibration debugging tool is needed to meet market demand. INVENTION CONTENTS

[0005] The utility model aims at providing a multifunctional pressure transmitter collection terminal to overcome the problems in the prior art, which can integrate micro, high integration, multiple interfaces and wireless communication; at the same time, it has strong compatibility and can be compatible with third-party transmitters with standard output signals to debug multiple transmitters; in addition, it does not need external cables, the terminal has Bluetooth wireless communication function, and the supporting APP is simple and convenient to use; it also has small size, is convenient to carry, can monitor the transmitter anytime and anywhere, and greatly brings convenience to the operator.

[0006] To achieve the above object, the utility model adopts the technical scheme as follows:

[0007] A multifunctional pressure transmitter acquisition terminal, including the casing, the inside installation of casing has pressure transmitter acquisition terminal circuit board, pressure transmitter acquisition terminal circuit board includes main control system, main control system is connected with power management system, charge and discharge system, power supply circuit, current acquisition circuit, voltage acquisition circuit, I2C acquisition circuit, RS485 acquisition circuit;

[0008] The current acquisition circuit is connected with the current acquisition terminal, the voltage acquisition circuit is connected with the voltage acquisition terminal, the I2C acquisition circuit is connected with the I2C acquisition terminal, and the RS485 acquisition circuit is connected with the RS485 acquisition terminal;

[0009] Further, the charge and discharge system includes a charging port, the charging port is connected with a battery, and the battery is connected with a discharging port.

[0010] Further, the main control system is also connected with a Bluetooth module, and the Bluetooth module is connected with a smart phone with Bluetooth function through input and output ports.

[0011] Further, the Bluetooth module is doBT-M02 Bluetooth transparent transmission module.

[0012] Further, the power management system is connected with an LED lamp.

[0013] Further, the chip model of the pressure transmitter acquisition terminal circuit board is HC32L166JATA.

[0014] Further, the current acquisition terminal is connected with a current transmitter through an ADC1 port.

[0015] Further, the voltage acquisition terminal is connected with a voltage transmitter through an ADC2 port.

[0016] Further, the I2C acquisition terminal is connected with an I2C transmitter through SCL and SDA ports.

[0017] Further, the RS485 acquisition terminal is connected with an RS485 transmitter through 485A and 485B buses.

[0018] The above technical scheme has the following advantages or beneficial effects:

[0019] The utility model provides a kind of multifunctional pressure transmitter acquisition terminal, by integrating power management system, charge-discharge system, power supply circuit, current acquisition circuit, voltage acquisition circuit, I2C acquisition circuit, RS485 acquisition circuit etc. on pressure transmitter acquisition terminal circuit board, the terminal realizes the high degree of integration;Not only reduce the size and weight of equipment, also improve the reliability and stability of equipment;At the same time, the integration of multiple acquisition circuits enables the terminal to simultaneously meet the acquisition needs of current, voltage, I2C, RS485 and other signals, greatly improving its multifunctionality;Current acquisition circuit and voltage acquisition circuit are connected with external circuit through current acquisition terminal and voltage acquisition terminal respectively, and current and voltage signals can be collected in real time and accurately;I2C acquisition circuit and RS485 acquisition circuit communicate with external equipment through I2C acquisition terminal and RS485 acquisition terminal respectively, realizing fast transmission and reception of data.

[0020] Further, with the built-in battery, the multifunctional pressure transmitter acquisition terminal can work continuously without external power supply, which helps long-time monitoring or remote deployment operation.

[0021] Further, the addition of Bluetooth module enables the acquisition terminal to wirelessly transmit the collected data to a smartphone, so users can view and monitor data in real time without wired connection, improving the convenience of data transmission.

[0022] Further, the doBT-M02 Bluetooth transceiving module adopts low power consumption, which can reduce energy consumption while ensuring data transmission performance, helping to prolong the battery life and service life of the device.

[0023] Further, the LED lamp can intuitively display whether it is in charging or charging is complete, and the visual feedback enables users to quickly understand the charging status of the device.

[0024] Further, the HC32L166JATA chip combines high performance and low power consumption, enabling the acquisition terminal to reduce energy consumption while ensuring data processing speed, prolonging battery life.

[0025] Further, by connecting current transmitter through ADC1 port, the acquisition terminal can accurately measure and collect current signals, and the high precision and resolution of DC1 port ensure the accuracy of current measurement.

[0026] Further, by connecting voltage transmitter through ADC2 port, the acquisition terminal can accurately measure and collect voltage signals, and the high precision and resolution of ADC2 port ensure the accuracy of voltage measurement.

[0027] Further, the I2C acquisition terminal is connected with the I2C transmitter, and the RS485 acquisition terminal is connected with the RS485 transmitter, so that the compatibility of the acquisition terminal with various devices and systems can be ensured, and the universality and market competitiveness of the device are improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a structural schematic view of the multifunctional pressure transmitter acquisition terminal of the utility model;

[0029] Figure 2 It is a CPU circuit diagram of the multifunctional pressure transmitter acquisition terminal of the utility model;

[0030] Figure 3 It is a Bluetooth module circuit diagram of the multifunctional pressure transmitter acquisition terminal of the utility model;

[0031] Figure 4 It is a boost circuit circuit diagram of the multifunctional pressure transmitter acquisition terminal of the utility model;

[0032] Figure 5 It is a charging circuit circuit diagram of the multifunctional pressure transmitter acquisition terminal of the utility model;

[0033] Figure 6 It is a 3.7-3.3 V step-down circuit circuit diagram of the multifunctional pressure transmitter acquisition terminal of the utility model;

[0034] Figure 7 It is a 24-5 V step-down circuit circuit diagram of the multifunctional pressure transmitter acquisition terminal of the utility model;

[0035] Figure 8 It is a 3.3 V power control circuit circuit diagram of the multifunctional pressure transmitter acquisition terminal of the utility model;

[0036] Figure 9 It is a 5 V power control circuit circuit diagram of the multifunctional pressure transmitter acquisition terminal of the utility model;

[0037] Figure 10 It is a current detection circuit circuit diagram of the multifunctional pressure transmitter acquisition terminal of the utility model;

[0038] Figure 11 It is a voltage detection circuit circuit diagram of the multifunctional pressure transmitter acquisition terminal of the utility model;

[0039] Figure 12 It is an I2C acquisition circuit circuit diagram of the multifunctional pressure transmitter acquisition terminal of the utility model;

[0040] Figure 13The utility model relates to a RS485 conversion circuit diagram of multifunctional pressure transmitter acquisition terminal,

[0041] Figure 14 The utility model relates to a RS485 communication circuit diagram of multifunctional pressure transmitter acquisition terminal,

[0042] Figure 15 The utility model relates to a work flow chart of multifunctional pressure transmitter acquisition terminal,

[0043] In the drawing, 1 - shell, 2 - pressure transmitter acquisition terminal circuit board, 3 - power management system, 4 - main control system, 5 - battery, 51 - discharge port, 6 - charging port, 7 - bluetooth module, 8 - current acquisition terminal, 9 - voltage acquisition terminal, 10 - I 2 C acquisition terminal, 11 - RS485 acquisition terminal, 12 - smart phone. DETAILED DESCRIPTION

[0044] In order to make the purpose, feature, advantage of the utility model more obvious and easy to understand, the technical scheme in the embodiment of the utility model will be clearly and completely described below in combination with the drawings in the embodiment of the utility model, obviously, the following described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of the utility model protection.

[0045] In the description of the utility model, it is understood that when a component is considered to be "connected" to another component, it can be directly connected to another component or there can be a component arranged in the middle. When a component is considered to be "arranged on" another component, it can be directly arranged on another component or there can be a component arranged in the middle.

[0046] In addition, the terms "long", "short", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model, and do not indicate or imply that the device or element referred to must have this specific orientation, be constructed in this specific orientation, and be operated in this specific orientation. It cannot be understood as a limitation of the utility model.

[0047] The technical scheme in the embodiment of the utility model will be clearly and completely described below in combination with the drawings in the embodiment of the utility model, obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of the utility model protection.

[0048] Embodiment 1:

[0049] As Figure 1 The utility model provides a kind of multifunctional pressure transmitter acquisition terminal, including shell 1, the inside installation of shell 1 has pressure transmitter acquisition terminal circuit board 2, pressure transmitter acquisition terminal circuit board 2 includes main control system 4, and main control system 4 is connected with power management system 3, charge-discharge system, power supply circuit, current acquisition circuit, voltage acquisition circuit, I2C acquisition circuit, RS485 acquisition circuit;Power management system 3 is connected with LED lamp;Charge-discharge system includes charging port 6, and charging port 6 is connected with battery 5, and battery 5 is connected with discharge port 51;Current acquisition circuit is connected with current acquisition terminal 8, and current acquisition terminal 8 is connected with current transmitter by ADC1 port, and voltage acquisition circuit is connected with voltage acquisition terminal 9, and voltage acquisition terminal 9 is connected with voltage transmitter by ADC2 port, and I2C acquisition circuit is connected with I2C acquisition terminal 10, and I2C acquisition terminal 10 is connected with I2C transmitter by SCL and SDA port, and RS485 acquisition circuit is connected with RS485 acquisition terminal 11, and RS485 acquisition terminal 11 is connected with RS485 transmitter by 485A and 485B bus;Main control system 4 is also connected with Bluetooth module 7, and Bluetooth module 7 is connected with the smart phone 12 with Bluetooth function by input and output port, and Bluetooth module 7 is doBT-M02 Bluetooth transparent transmission module;

[0050] Preferably, the size of shell 1 is 5 cm * 3 cm.

[0051] Preferably, the chip model of pressure transmitter acquisition terminal circuit board 2 is HC32L166JATA.

[0052] Embodiment 2:

[0053] As Figure 1 The utility model provides a kind of multifunctional pressure transmitter acquisition terminal, including shell 1, the inside installation of shell 1 has pressure transmitter acquisition terminal circuit board 2, pressure transmitter acquisition terminal circuit board 2 includes main control system 4, and main control system 4 is connected with power management system 3, charge-discharge system, power supply circuit, current acquisition circuit, voltage acquisition circuit, I2C acquisition circuit, RS485 acquisition circuit, uses battery 5 power supply;Power management system 3 is connected with LED lamp;Charge-discharge system includes charging port 6, and charging port 6 is connected with battery 5, and battery 5 is connected with discharge port 51;

[0054] Preferably, the size of shell 1 is 5 cm * 3 cm.

[0055] As Figure 2As shown, the pressure transmitter acquisition terminal circuit board 2 chip model is HC32L166JATA, externally connected with each acquisition and indication module, as the brain of the acquisition terminal, embedded program is configured to realize automatic acquisition task.

[0056] As shown in the figure, Figure 3 As shown, the master control system 4 is connected with the Bluetooth module 7, the Bluetooth module 7 is connected with the Bluetooth-enabled smart phone 12 through the input and output ports, the Bluetooth module 7 uses the low-power doBT-M02 Bluetooth transceiving module, is connected with the CPU through the universal asynchronous receiving and transmitting port, and has the broadcast wake-up function, can be connected with the mobile phone at any time under battery power supply, and realizes the acquisition task.

[0057] As shown in the figure, Figures 4-9 As shown in the figure, As shown in the figure, the acquisition terminal is powered by a rechargeable 3.7V lithium battery, which can protect the power supply, and the power supply circuit is composed of charging circuit, boost circuit, buck circuit and control circuit; the charging circuit is charged by DC1 external charger, adopts high conversion efficiency lithium battery dedicated charging chip TP4506, which has a programmable charging current of up to 1000 mA, and adopts constant current / constant voltage operation mode, which can meet the higher charging demand, and also has battery 5 temperature monitoring function, which can ensure the maximization of lithium battery charging rate without overheating danger; there are two indicator lights D1 and D2 during charging as charging and charging completion identification, and the battery automatically switches to provide power for the terminal after charging is completed; the 3.7V lithium battery is boosted to 24V by DC-DC boost chip AP3012KTR, and the power supply voltage is boosted to 24V for the output of the current and voltage output transmitter, and the 24V voltage is also boosted to 5V by linear voltage regulator chip H7550S for RS485 output transmitter; the 3.7V lithium battery is reduced to 3.3V by linear voltage regulator chip H7533S for CPU, I2C output transmitter; because the acquisition terminal is powered by battery 5, it needs to greatly reduce the consumption of its battery power when there is no acquisition task; therefore, the control circuit is designed to control the power supply of the 3.3V, 24V and 5V transmitters, when there is an acquisition task, the power supply is automatically selected according to the connected transmitters, otherwise the power supply is not supplied; the specific control method is that AP3012KTR can control 24V through the PIN 4 pin EN function of the chip, and 3.3V and 5V are controlled by the switching circuit composed of triode S5050 and field effect tube AO3401.

[0058] As shown in the figure, Figure 10As shown, the current acquisition circuit is connected to the current acquisition terminal 8, the current acquisition terminal 8 is connected to the current transmitter through the ADC1 port, and the current output transmitter is connected to the terminal through the terminal J1. The general current output transmitter is provided with 24 V power supply through the J1 terminal 1 pin, and the current acquisition is realized through the J1 terminal 2 pin. The specific implementation manner is that after the current output transmitter is powered, the high-precision precision resistor is used to realize the current acquisition. When the transmitter output is 4 mA, it can be known through Ohm's law that the voltage passing through the resistor R10 is 4 mA*150Ω=0.6 V. When the transmitter output is 20 mA, it can be known through Ohm's law that the voltage passing through the resistor R10 is 20 mA*150Ω=3.0 V. In order to prevent the working abnormality of the external transmitter, so that the voltage on R10 suddenly increases instantaneously and burns the single-chip microcomputer, the zener diode D4 is used to protect the IO port of the single-chip microcomputer. Since the ADC1 port of the CPU can collect 0-3.3 V voltage signals, the resolution is 12 bits, and it is 4096, the CPU can easily realize the acquisition of any signal of the current transmitter through the ADC function of the CPU. The specific implementation formula is: the actual transmitter current value=(the collected ADC value / 4096)*3.3 V / 150Ω.

[0059] As shown in Figure 11 , the voltage acquisition circuit is connected to the voltage acquisition terminal 9, the voltage acquisition terminal 9 is connected to the voltage transmitter through the ADC2 port, and the voltage output transmitter is connected to the terminal through the terminal J2. The general current output transmitter is provided with 24 V / 5 V power supply through the J1 terminal 1 / 2 pin and the 4 pin, and the current acquisition is realized through the J2 terminal 3 pin. The specific implementation manner is that after the voltage output transmitter is powered, the resistor voltage dividing principle is used to convert the collected voltage into a voltage signal that can be collected by the CPU, such as when the output is 10 V, the voltage entering the ADC2 of the CPU is 10 V*1 / 3=3.33 V through resistor voltage division. In this way, the output of the voltage output transmitter is any output value between 0-10 V, and the voltage value can be easily collected through the ADC function of the CPU. The specific implementation formula is: the actual transmitter voltage value=(the collected ADC value / 4096)*3 V.

[0060] As shown in Figure 12 , the I2C acquisition circuit is connected to the I2C acquisition terminal 10, the I2C acquisition terminal 10 is connected to the I2C transmitter through the SCL and SDA ports, the I2C output transmitter is provided with 3.3 V power supply through the J5 terminal 1 pin and the 2 pin, the communication line is connected to the I2C port 35 pin and the 36 pin of the CPU, and the actual pressure signal acquisition and the communication of the transmitter are realized through the embedded program, the data reading of the mobile phone end I2C time sequence.

[0061] As shown in Figure 13and Figure 14 As shown in the figure, the RS485 acquisition circuit is connected with RS485 acquisition terminal 11, the RS485 acquisition terminal 11 is connected with the RS485 transmitter through 485A and 485B bus, the RS485 output transmitter provides 5V power supply through J6 terminal 1 pin and 4 pin, the communication line is connected with the general asynchronous receiving port 12 pin and 13 pin of CPU through the special RS485 transceiver, through the embedded program, the data reading of the mobile phone terminal, the acquisition of the actual pressure signal and the communication of the transmitter are realized.

[0062] The structure and working principle of the utility model are further described as follows:

[0063] The utility model discloses a multifunctional pressure transmitter acquisition terminal, which solves the technical problem by using a scientific, reasonable, convenient and multifunctional debugging terminal, integrates miniaturization, high integration, multiple interfaces and wireless communication design in a 5 cm*3 cm shell 1, and realizes the acquisition of current, voltage, I2C and RS485 signals in a special APP used by the utility model. Figure 15 As shown in the figure, the tool reserves main analog signal current, voltage, digital signal I2C and RS485, uses battery 5 for power supply, has Bluetooth communication function, can be connected with Bluetooth 4.0 above supporting smart phone 12, and realizes the acquisition of current, voltage, I2C and RS485 signals in the special APP used, which is composed of the tool and the mobile phone terminal together to form a multifunctional pressure transmitter acquisition terminal.

[0064] The above-described embodiments are only used to illustrate the technical solutions of the utility model, rather than limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A multifunctional pressure transmitter collection terminal, characterized by, Including the shell (1), the inside installation of shell (1) has pressure transmitter acquisition terminal circuit board (2), pressure transmitter acquisition terminal circuit board (2) including main control system (4), main control system (4) is connected with power management system (3), charge and discharge system, power supply circuit, current acquisition circuit, voltage acquisition circuit, I²C acquisition circuit, RS485 acquisition circuit; The current acquisition circuit is connected with current acquisition terminal (8), the voltage acquisition circuit is connected with voltage acquisition terminal (9), the I²C acquisition circuit is connected with I²C acquisition terminal (10), and the RS485 acquisition circuit is connected with RS485 acquisition terminal (11).

2. The multifunctional pressure transmitter collection terminal according to claim 1, characterized in that, The charge and discharge system includes charging port (6), and the charging port (6) is connected with battery (5), and the battery (5) is connected with discharge port (51).

3. The multifunctional pressure transmitter collection terminal according to claim 1, characterized in that, The main control system (4) is also connected with Bluetooth module (7), and the Bluetooth module (7) is connected with smart phone (12) with Bluetooth function through input and output ports.

4. The multifunctional pressure transmitter collection terminal according to claim 3, characterized in that, The Bluetooth module (7) is doBT-M02 Bluetooth transparent module.

5. The multifunctional pressure transmitter collection terminal according to claim 1, characterized in that, The power management system (3) is connected with LED lamp.

6. The multifunctional pressure transmitter collection terminal according to claim 1, characterized in that, The chip model of the pressure transmitter acquisition terminal circuit board (2) is HC32L166JATA.

7. The multifunctional pressure transmitter collection terminal according to claim 6, characterized in that, The current acquisition terminal (8) is connected with current transmitter through ADC1 port.

8. The multifunctional pressure transmitter collection terminal according to claim 6, characterized in that, The voltage acquisition terminal (9) is connected with voltage transmitter through ADC2 port.

9. The multifunctional pressure transmitter collection terminal according to claim 6, characterized in that, The I²C acquisition terminal (10) is connected with I²C transmitter through SCL and SDA ports.

10. The multifunctional pressure transmitter collection terminal according to claim 6, wherein, The RS485 acquisition terminal (11) is connected with RS485 transmitter through 485A and 485B bus.

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