CN112857666A - Touch-control pressure transmitter debugger - Google Patents
Touch-control pressure transmitter debugger Download PDFInfo
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- CN112857666A CN112857666A CN202110069382.3A CN202110069382A CN112857666A CN 112857666 A CN112857666 A CN 112857666A CN 202110069382 A CN202110069382 A CN 202110069382A CN 112857666 A CN112857666 A CN 112857666A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
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Abstract
The invention discloses a touch pressure transmitter debugger, which comprises an industrial touch screen, a debugger control circuit, a debugger shell, a power supply communication cable and a power adapter, wherein a debugger body is fixedly installed inside the debugger shell, the debugger control circuit is fixedly installed at the top of the debugger body, the industrial touch screen is fixedly installed at the top of the debugger control circuit, a transmitter power supply positive interface penetrates through the surface of the debugger shell, and a transmitter power supply negative interface penetrates through one side of the transmitter power supply positive interface. The invention realizes the debugging method of the common PC configuration in the using process, the touch pressure transmitter debugger is simple to install and is more convenient and fast in debugging process, and compared with the existing transmitter debugger products in the market, the touch pressure transmitter debugger has the advantages of richer functions, smaller volume, higher screen occupation ratio and more friendly user interface.
Description
Technical Field
The invention relates to the technical field of transmitter debugging, in particular to a touch pressure transmitter debugger.
Background
The sensor is a generic name of a device or a device capable of converting a measured value into a usable output signal according to a certain rule, and generally comprises a sensing element and a conversion element, such as a diffused silicon pressure sensor, the transmitter is a device for converting a non-standard electric signal generated by the sensor into a standard electric signal, and amplifies a weak electric signal acquired by the sensor so as to transmit or start a control element, and the sensor and the transmitter are matched with each other to form an automatic control monitoring signal source.
The transducer sampling circuit is a core device for realizing the electric signal conversion and amplification function, can be independently manufactured in the prior art and used after being matched with a corresponding sensor for connection in actual application, the pressure transducer is widely applied to industrial engineering control, because the output characteristics of the sensors of different manufacturers or different specifications are different, the range setting and the pressure calibration of at least two points are required when each pressure sensor is matched with the transmitter, the debugging process is particularly critical in the instrument production link, so the optimized design of the pressure transmitter debugging tool can greatly improve the production efficiency, the traditional pressure transmitter only supports key calibration or PC (personal computer) calibration, is complex to operate and complex in wiring, some pressure transmitter debuggers exist in the market, but the pressure transmitter debuggers have simple functions, complex wiring and unfriendly user interfaces.
Disclosure of Invention
In order to solve the problems of difficult control and inconvenient use of the existing PC calibration and the problems of simple and crude debugger interface and complex wiring existing in the market, the invention provides the touch pressure transmitter debugger which has the characteristics of easy operation, rich functions, convenient use, strong universality and the like.
In order to achieve the purpose, the invention adopts the following technical scheme:
a touch control pressure transmitter debugger comprises an industrial touch screen, a debugger control circuit, a debugger shell, a power supply communication cable and a power adapter, wherein a debugger body is fixedly installed inside the debugger shell, the debugger control circuit is fixedly installed at the top of the debugger body, the industrial touch screen is fixedly installed at the top of the debugger control circuit, a transmitter power supply positive interface penetrates through the surface of the debugger shell, a transmitter power supply negative interface penetrates through one side of the transmitter power supply positive interface, and a power supply interface penetrates through one side of the transmitter power supply negative interface;
the touch control transmitter debugger control circuit is connected with the middle of the industrial touch screen through a serial port flat cable, the debugger control circuit supplies power to the industrial touch screen through the flat cable and communicates with the industrial touch screen, the debugger control circuit is provided with two transmitter debugging power supply interfaces, two cables are led out through the banana plug, the cables have a communication function except that 24V voltage is provided for the transmitters, and the debugger provides voltage through a power adapter.
Preferably, the debugger circuit comprises a series of functional circuits: the device comprises a current measuring circuit, a communication circuit, a buzzer circuit, a touch screen control circuit, a single chip microcomputer circuit and the like.
Preferably, a sampling chip of the current measuring circuit has a band gap reference with low temperature drift, the effective resolution of the ADC can reach more than 21 bits, the current sampling resistor adopts a metal thin film resistor with high precision and low temperature drift, and the effective resolution of the current measurement can reach 1 muA.
Preferably, the touch screen control circuit realizes the function of converting the logic level of the singlechip to the logic level of the touch screen and provides a stable power supply for the touch screen.
Preferably, the communication signal of the communication circuit is superposed on the power supply voltage of the transmitter, and the transmitter and the debugger can realize power supply and debugging at the same time only by connecting a power line.
Preferably, the high-frequency digital signal sent by the debugger is sent by a TX pin of a UART serial communication interface of the singlechip, the communication signal is converted into logic levels of 24V and 19V through the signal processing circuit, and by adopting the levels, on one hand, the transmitter can be ensured to have enough voltage to keep normal operation, and meanwhile, the transmitter has enough amplitude, and data acquisition can be realized on one side of the transmitter through a simple capacitor and a voltage stabilizing tube.
Preferably, the signal sending circuit needs a matched signal receiving and processing circuit and a signal adaptation algorithm on one side of the transmitter, the circuit receives an alternating current signal sent by a debugger by adopting a capacitor in series connection, and the data frame is resolved by the adaptation algorithm on software.
Preferably, when the debugger receives data sent by the transmitter, the transmitter transmits a digital signal in a mode of controlling current change, the output current of the transmitter is collected through the sampling resistor and is converted into a voltage signal, the comparator sets the threshold voltage to be 1.65V, the comparator is connected with the voltage of 1.32V when the transmitter outputs 4mA, the comparator is connected with the voltage of 1.98V when the transmitter outputs 6mA, and the binary value expression is realized through the switching between 4mA and 6 mA.
Preferably, the cable is used for providing the changer power simultaneously, gathers changer output current and sends the order to the changer, for improving measurement accuracy and long-term stability of using, the lower wire rod of impedance need be adopted to the cable to adopt contact resistance low, firm in connection's connected mode, like the banana plug at the kneck.
Preferably, the debugger shell adopts fire-retardant PC material, is provided with the slope in the touch-sensitive screen windowing region, and the casing adopts the dull polish material.
Compared with the prior art, the invention has the beneficial effects that:
1. compared with a common debugging method of PC configuration, the touch pressure transmitter debugger is simple to install, the transmitter can be debugged only by being connected with a power supply, the wiring mode is simplified, meanwhile, the debugging function is combined and optimized, and the debugging process is more convenient and faster.
2. Compared with the existing transmitter debugger products in the market, the touch pressure transmitter debugger has the advantages of richer functions, smaller volume, higher screen occupation ratio and more friendly user interface.
Drawings
Fig. 1 is a sectional perspective view of a touch pressure transmitter debugger according to the present invention;
fig. 2 is an external view of a touch pressure transmitter debugger according to the present invention;
fig. 3 is a schematic diagram of a communication circuit of a touch pressure transmitter debugger according to the present invention.
In the figure: 1. an industrial touch screen; 2. a debugger control circuit; 3. a transmitter power supply positive interface; 4. a transmitter power supply negative interface; 5. a power interface; 6. a debugger shell.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-3, a touch pressure transmitter debugger comprises an industrial touch screen 1, a debugger control circuit 2, a debugger shell 6, a power supply communication cable and a power adapter, wherein a debugger body is fixedly installed inside the debugger shell 6, the debugger control circuit 2 is fixedly installed at the top of the debugger body, the industrial touch screen 1 is fixedly installed at the top of the debugger control circuit 2, a transmitter power supply positive interface 3 is arranged on the surface of the debugger shell 6 in a penetrating manner, a transmitter power supply negative interface 4 is arranged on one side of the transmitter power supply positive interface 3 in a penetrating manner, and a power interface 5 is arranged on one side of the transmitter power supply negative interface 4 in a penetrating manner;
touch-control changer debugger control circuit 2 links to each other through the serial ports winding displacement in the middle of with industrial touch screen 1, and debugger control circuit 2 passes through the winding displacement and gives industrial touch screen 1 power supply and communicates with it, and debugger control circuit 2 has two changer debugging power supply interfaces, draws forth two cables through the banana plug, and the cable has communication function except providing 24V voltage for the changer, still has concurrently, and debugger self provides voltage through power adapter.
When the device works, the industrial touch screen 1 and the debugger control circuit 2 are installed inside the debugger shell 6, the front side of the debugger shell 6 is provided with a touch screen windowing, a user realizes control in the area through an operation interface on the touch screen, the industrial touch screen 1 and the debugger control circuit 2 realize power supply of the control circuit to the touch screen and communication of the industrial touch screen and the debugger control circuit 2 through flat cable connection, three external interfaces are arranged on the debugger control circuit 2 and are fixed on the side surface of the debugger shell 6;
when the device works, wherein a transmitter power positive interface 3 and a transmitter power negative interface 4 adopt a banana plug female socket form, a 4mm banana plug leading-out cable is butted with a 4mm banana plug for supplying power to a debugged transmitter and communicating with the debugged transmitter, a third interface is a 5.5mm power interface 5 for supplying power to a debugger, in addition, each side surface of a debugger shell 6 is provided with a heat dissipation fence, so that heating devices such as an internal power module and the like can dissipate heat in time to reduce the temperature inside the debugger, thereby reducing the influence on the current measurement precision, the industrial touch screen 1 adopts a high-resolution screen, supports 16 true colors, has attractive interface design, improves user experience compared with the traditional industrial manual operator, supports backlight brightness adjustment, adapts to the use environments and use habits of different users, and combines and integrates transmitter debugging functions, the zero point and full point current output calibration and the pressure calibration are integrated into zero point calibration and full point calibration, the operation frequency of a user is reduced to half, compared with a traditional industrial transmitter debugger, due to the fact that a high-resolution touch screen is adopted, more functions can be achieved, such as real-time curves, duration curves and the like, the functions of the debugger are enriched, and the operability of a product is improved;
wherein the debugger circuit comprises a series of functional circuits: the device comprises a current measuring circuit, a communication circuit, a buzzer circuit, a touch screen control circuit, a single chip microcomputer circuit and the like;
it should be noted that the buzzer circuit is used for feeding back user operation and transmitter state, and supplies power through 5V on the debugger control circuit 2, and the PWM output pin of the single chip microcomputer controls sound frequency and time length;
the sampling chip of the current measuring circuit has a band gap reference with low temperature drift, the effective resolution of the ADC can reach more than 21 bits, the current sampling resistor adopts a metal thin film resistor with high precision and low temperature drift, and the effective resolution of the current measurement can reach 1 muA;
when the device works, the current measuring circuit is composed of a 24-bit ADC chip AD7793 circuit, a sampling resistor circuit and the like, wherein the sampling resistor is composed of three 100-ohm metal film resistors connected in parallel, temperature drift is small, and the sampling resistor converts 4-20mA current signals output by the transmitter into voltage signals and transmits the voltage signals to the AD7793 chip for sampling;
the touch screen control circuit realizes the function of converting the logic level of the singlechip into the logic level of the touch screen and provides a stable power supply for the touch screen;
it should be noted that the industrial touch screen 1 is connected with the debugger control circuit 2 through a serial interface, and the debugger control circuit 2 provides power;
communication signals of the communication circuit are superposed on the power supply voltage of the transmitter, and the transmitter and the debugger can realize power supply and debugging at the same time only by connecting power lines;
when the debugger receives data, the transmitter outputs current through high-speed switching to realize data transmission, the debugger samples the current, and the comparator extracts a digital signal;
the high-frequency digital signal sent by the debugger is sent by a TX pin of a UART serial communication interface of the singlechip, the communication signal is converted into logic levels of 24V and 19V through a signal processing circuit, and the level can ensure that the transmitter has enough voltage to keep normal operation and enough amplitude on one hand, and data acquisition can be realized on one side of the transmitter through a simple capacitor and a voltage stabilizing tube;
it should be noted that, the debugger control circuit 2 receives a user instruction sent by the industrial touch screen 1, and feeds back the actual state of the control circuit to the touch screen to be displayed to the user.
When the debugger receives data sent by the transmitter, the transmitter transmits signals in a mode of controlling current change, the output current of the transmitter is collected through the sampling resistor and is converted into voltage signals, the threshold voltage of the comparator is set to be 1.65V, the comparator is connected with the voltage of 1.32V when the transmitter outputs 4mA, the comparator is connected with the voltage of 1.98V when the transmitter outputs 6mA, and the binary number value is expressed through switching between 4mA and 6 mA;
as shown in fig. 2, the communication circuit mainly includes two parts: the right side of fig. 2 is an instruction sending circuit, and the left side is a state receiving circuit, wherein BS + corresponds to the transmitter power supply positive interface 3, and BS-corresponds to the transmitter power supply negative interface 4;
the command transmitting circuit is used for realizing the superposition of transmitting data to the power supply voltage of the transmitter. The signal sent by the instruction is generated by a sending pin IO _ TX of a UART serial interface of the singlechip, and is transmitted through a modulation circuit formed by Q1, Q2, Q3 and U8, wherein U8 is an inverter, switching of BS + level 24V and BS + level 19V is realized by controlling the on and off of a transistor, Q3 is switched on, and D1 between BS + and 24V generates 5V clamping voltage when Q1 is switched off, so that the BS + outputs 19V level, and D1 adopts an ESD protection diode, and the UART serial interface has the characteristics of low junction capacitance and high response speed;
the state receiving circuit is used for demodulating state information returned by the transmitter to an IO port IO _ RX of the single chip microcomputer, R5, R6 and R7 which are connected in parallel are current sampling resistors, one side of the transmitter is modulated through signals of 4mA and 6mA, feedback information is transmitted to the debugger in a current change mode, at a BS position, the current signals are converted into voltage signals through the sampling resistors, the signals are amplified through an operational amplifier U3, and then the voltage comparison is carried out through a comparator U6 and a 1/2VCC, so that the demodulation of the feedback signals of the transmitter is achieved.
The cable is simultaneously used for providing a transmitter power supply, collecting the output current of the transmitter and sending a command to the transmitter, and in order to improve the measurement precision and the long-term use stability, the cable needs to adopt a wire with lower impedance and adopts a connection mode with low contact resistance and firm connection, such as a banana plug, at an interface;
it should be noted that the insertion is convenient by inserting into the hole on the front surface of the multipurpose socket mentioned above, and a very large contact area can be formed after the insertion, which makes it preferable to be used in a high power output device.
The debugger shell 6 is made of flame-retardant PC materials, a slope is arranged in a windowing area of the touch screen, and the shell is made of frosted materials;
it should be noted that the casing adopts the dull polish material, strengthens user operation comfort level, is provided with the heat dissipation fence in the debugger side to inside power module etc. generate heat the device and can in time dispel the heat, with the inside temperature of reduction debugger, thereby reduce the influence to current measurement accuracy.
In the embodiment of the present invention, the design of the user interface is divided into the following parts: quick calibration process, standard calibration process, real-time monitoring, debugger calibration and factory setting restoration function;
the quick calibration is used for a pressure transmitter without a display, so that a measurement range value is not required to be paid attention to as long as the calibrated pressure and the output current can correspond, in the quick calibration, parameters such as measurement range, unit and the like are not required to be set, and a user can simultaneously complete the zero-point and full-point current calibration and pressure calibration processes as long as two steps of zero point calibration and full-point calibration are operated;
the standard calibration process provides all parameter setting functions necessary for user calibration, such as calibration range setting, display unit setting, transmitter output range setting, decimal point number setting, magnification setting and the like for the pressure transmitter with display. The calibration point number is set, so that multi-point calibration from two points to 15 points can be realized;
the real-time monitoring function can monitor the real-time state of the debugged transmitter for a long time after the calibration is finished, and can check the variable value and the current value of the pressure and the real-time curve of the variable value and the current value;
the debugger calibration function is used to calibrate the current measurement circuitry of the debugger itself. And the factory restoration setting is used for carrying out initial setting restoration operation on the transmitter with the debugging error.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The touch control pressure transmitter debugger is characterized by comprising an industrial touch screen (1), a debugger control circuit (2), a debugger shell (6), a power supply communication cable and a power adapter, wherein a debugger body is fixedly installed inside the debugger shell (6), the debugger control circuit (2) is fixedly installed at the top of the debugger body, the industrial touch screen (1) is fixedly installed at the top of the debugger control circuit (2), a transmitter power positive interface (3) penetrates through the surface of the debugger shell (6), a transmitter power negative interface (4) penetrates through one side of the transmitter power positive interface (3), and a power interface (5) penetrates through one side of the transmitter power negative interface (4);
the touch control transmitter debugger control circuit is connected with the middle of the industrial touch screen (1) through a serial port flat cable, the debugger control circuit (2) supplies power to the industrial touch screen (1) through the flat cable and communicates with the industrial touch screen, the debugger control circuit (2) is provided with two transmitter debugging power supply interfaces, two cables are led out through a banana plug, the cables have a communication function except that 24V voltage is provided for the transmitters, and the debugger provides voltage through a power adapter.
2. The touch-sensitive pressure transmitter debugger of claim 1, wherein the debugger circuit comprises a series of functional circuits: the device comprises a current measuring circuit, a communication circuit, a buzzer circuit, a touch screen control circuit, a single chip microcomputer circuit and the like.
3. The touch pressure transmitter debugger of claim 2, wherein a sampling chip of the current measurement circuit has a band gap reference with low temperature drift, an ADC effective resolution can reach more than 21 bits, the current sampling resistor is a high-precision metal thin film resistor with low temperature drift, and a current measurement effective resolution can reach 1 μ Α.
4. The touch pressure transmitter debugger of claim 2, wherein the touch screen control circuit implements a function of converting a logic level of the single chip microcomputer to a logic level of the touch screen, and simultaneously provides a stable power supply for the touch screen.
5. The touch pressure transmitter debugger of claim 2, wherein a communication signal of the communication circuit is superimposed on a supply voltage of the transmitter, and the transmitter and the debugger can simultaneously implement power supply and debugging only by connecting a power line.
6. The touch pressure transmitter debugger according to claim 5, wherein the high-frequency digital signal sent by the debugger is sent by a TX pin of a UART serial communication interface of a single chip microcomputer, the communication signal is converted into logic levels of 24V and 19V through a signal processing circuit, and by adopting the levels, on one hand, sufficient voltage of the transmitter can be guaranteed to keep normal operation, meanwhile, sufficient amplitude is provided, and data acquisition can be achieved through a simple capacitor and a voltage stabilizing tube on one side of the transmitter.
7. The touch pressure transmitter debugger according to claim 6, wherein the signal sending circuit further needs a signal receiving and processing circuit and a signal adaptation algorithm which are matched on one side of the transmitter, the circuit receives the alternating current signal sent by the debugger through a capacitor in series, and the data frame is resolved through the adaptation algorithm on software.
8. The touch pressure transmitter debugger of claim 5, wherein when the debugger receives data sent by the transmitter, the transmitter transmits a digital signal in a manner of controlling a change in current, the transmitter output current is collected through the sampling resistor, i.e., the digital signal is converted into a voltage signal, the comparator sets a threshold voltage to be 1.65V, the comparator is connected to a voltage of 1.32V when the transmitter outputs 4mA, the comparator is connected to a voltage of 1.98V when the transmitter outputs 6mA, and expression of a binary value is achieved by switching between 4mA and 6 mA.
9. The touch pressure transmitter debugger of claim 1, wherein the cable is used to provide a transmitter power supply, collect transmitter output current and send commands to the transmitter, and in order to improve measurement accuracy and stability for long-term use, the cable needs to use a wire with low impedance and a connection mode with low contact resistance and firm connection, such as a banana plug, at an interface.
10. The touch pressure transmitter debugger of claim 1, wherein the debugger shell (6) is made of flame-retardant PC material, a slope is arranged in a window area of the touch screen, and the shell is made of frosted material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110069382.3A CN112857666A (en) | 2021-01-19 | 2021-01-19 | Touch-control pressure transmitter debugger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110069382.3A CN112857666A (en) | 2021-01-19 | 2021-01-19 | Touch-control pressure transmitter debugger |
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| CN112857666A true CN112857666A (en) | 2021-05-28 |
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| CN202110069382.3A Pending CN112857666A (en) | 2021-01-19 | 2021-01-19 | Touch-control pressure transmitter debugger |
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| CN103712739A (en) * | 2013-12-20 | 2014-04-09 | 渤海造船厂集团有限公司 | 3051 intelligent pressure transmitter calibration device |
| CN205067012U (en) * | 2015-09-17 | 2016-03-02 | 福建澳泰自动化设备有限公司 | Debugging interface connection device that pressure transmitter used |
| CN106153250A (en) * | 2016-08-31 | 2016-11-23 | 重庆四联测控技术有限公司 | The input signal automated calibration system of a kind of pressure transmitter and method |
| CN106301471A (en) * | 2015-06-25 | 2017-01-04 | 机械工业仪器仪表综合技术经济研究所 | A kind of amplitude adjustable MBP signal generating circuit for test |
| CN207163656U (en) * | 2017-09-22 | 2018-03-30 | 电光防爆科技（上海）有限公司 | Intelligent pressure checking table |
| CN109870182A (en) * | 2019-03-25 | 2019-06-11 | 安徽络嵌控制系统有限公司 | A kind of transmitter debugging system |
| CN209945613U (en) * | 2019-06-03 | 2020-01-14 | 天津辰星迎晖电气自动化工程有限公司 | Portable pressure transmitter correcting unit |
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2021
- 2021-01-19 CN CN202110069382.3A patent/CN112857666A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712739A (en) * | 2013-12-20 | 2014-04-09 | 渤海造船厂集团有限公司 | 3051 intelligent pressure transmitter calibration device |
| CN106301471A (en) * | 2015-06-25 | 2017-01-04 | 机械工业仪器仪表综合技术经济研究所 | A kind of amplitude adjustable MBP signal generating circuit for test |
| CN205067012U (en) * | 2015-09-17 | 2016-03-02 | 福建澳泰自动化设备有限公司 | Debugging interface connection device that pressure transmitter used |
| CN106153250A (en) * | 2016-08-31 | 2016-11-23 | 重庆四联测控技术有限公司 | The input signal automated calibration system of a kind of pressure transmitter and method |
| CN207163656U (en) * | 2017-09-22 | 2018-03-30 | 电光防爆科技（上海）有限公司 | Intelligent pressure checking table |
| CN109870182A (en) * | 2019-03-25 | 2019-06-11 | 安徽络嵌控制系统有限公司 | A kind of transmitter debugging system |
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