CN204789745U - Wireless multi -functional digital measuring station - Google Patents

Abstract

The wireless multifunctional digital measurement station is beneficial to maintain the function upgrade, update and continuous evolution of the product, and is conducive to improving the resource utilization of existing data display processing equipment, etc., and is characterized in that it includes a housing, and the housing includes a multifunctional digital The measurement circuit part does not include the data display processing part. The housing is provided with a wireless transceiver and several pairs of jacks. The multifunctional digital measurement circuit part includes several measurement circuits, and the several measurement circuits are connected to the Several pairs of jacks form a one-to-one connection relationship to realize respective measurement functions, and the wireless transceiver is used to send measurement data to the outside.

Description

Wireless Multifunctional Digital Measurement Station

technical field

The utility model relates to a portable multi-purpose digital instrument technology, in particular to a wireless multi-functional digital measuring station, which is conducive to maintaining product function upgrades, updates and continuous evolution, and is beneficial to improving resource utilization of existing data display processing equipment and the like.

Background technique

The measurement circuit and measurement display components of the traditional handheld measurement digital display instrument are integrated, the measurement object, the range of users, and the cost that the user can pay are basically determined. There are the following disadvantages: 1. The product is a one-time design. After the design is completed, the system It is solidified. Since the measurement circuit and measurement display components are installed in the same casing, the system function is determined under the planning of the target cost. Due to the solidification of the system, it is impossible to do continuous application software development, and cannot maintain product function upgrades and continuous evolution. 2. Due to cost constraints, the design of the display part is limited to ordinary monochrome LCDs, and the display information is limited to no more than two hundred basic pixels. Therefore, the content that can be displayed is limited, the display method is not flexible enough, and it is relatively difficult to plan More flexible and easy-to-understand application display interface. 3. Due to the low allocation of overall system resources, it is limited that they usually do not have the complete storage of measurement data, statistics and other deep computing and processing capabilities. The data transmitted to the standard computing and display platform is not easy to be recognized and understood by people, and at the same time, the implementation method of transmitting to the standard computing and display platform is costly. 4. Due to the defects of the above-mentioned traditional digital measuring instrument industry, in order to meet the actual needs of technology and manufacturing development, various instrument manufacturers can only continuously develop new products. The entire redesign of the original system cannot make good use of the hardware and software resources designed and developed in the past, resulting in a great waste of resources, not to mention the waste of the cost of remaking the mold.

Due to the limitations of these factors, this type of instrument is positioned in engineering applications. In fact, in addition to engineering applications, we think it should have a wider range of applications, including personal and family use, so we designed a wireless multi-function digital measuring station (MeterHUB). Our wireless multifunctional digital measuring station (MeterHUB) works as follows: the wireless multifunctional digital measuring station (MeterHUB) measures the measured object and sends the measurement data to the data display management device in a wireless manner, and the data display management device will The data is displayed on the device, and at the same time, the data can be further stored, statistically analyzed and other in-depth calculations and processing. The data display management equipment adopts tablet computers, mobile phones, display boards, computers and other intelligent external display processing devices in our daily life. As long as software or applications are installed on these devices, data display, processing and management functions can be realized. The wireless multifunctional digital measuring station (MeterHUB) uses this method to realize the separation of data acquisition and data display. The wireless multifunctional digital measuring station (MeterHUB) is only responsible for data measurement and transmission, and does not include display circuit design. Therefore, the wireless multifunctional digital measuring station (MeterHUB) The functional digital measuring station (MeterHUB) can be small and portable, and the data display processing equipment adopts tablet computers, mobile phones, display boards, computers and other intelligent external display processing equipment that everyone currently has. No additional design of display module circuits is required, which simplifies The design of the hardware circuit is improved, and the display effect of the external data display management device is more flexible and colorful. The intelligent external data display management equipment can also store the collected data, perform statistical analysis and other in-depth calculation processing. The wireless multifunctional digital measuring station (MeterHUB) product itself has multiple sets of measurement data interfaces and internal circuits. When the product needs to be upgraded, it only needs to program the wireless multifunctional digital measuring station (MeterHUB) to realize new measurement functions. , without having to re-develop the hardware, even if the original wireless multi-functional digital measuring station (MeterHUB) cannot realize new measurement functions through simple programming, the upgrade of the hardware is only an upgrade of the wireless multi-functional digital measuring station (MeterHUB) , there is no need to update the hardware circuit of the display processing part. The software upgrade of the display processing part only needs to develop a new version of the software and reinstall the new version of the software on the device. Therefore, the upgrade and development of the product is more convenient and cheap. The wireless multi-function digital measuring station (MeterHUB) has already included a multi-port structure similar to the octopus arm in the planning, leaving an evolution direction for the development of various portable instruments while the overall system planning remains unchanged.

Utility model content

The utility model provides a wireless multifunctional digital measurement station for the defects or deficiencies in the prior art, which is beneficial to maintain the function upgrade, update and continuous evolution of the product, and is beneficial to improve the resource utilization of existing data display processing equipment, etc. .

The technical scheme of the utility model is as follows:

The wireless multifunctional digital measuring station is characterized in that it includes a housing, the housing includes a multifunctional digital measuring circuit part, and does not include a data display processing part, and the housing is provided with a wireless transceiver and several pairs of jacks, The multifunctional digital measurement circuit part includes several measurement circuits, and the several measurement circuits form a one-to-one connection relationship with the several pairs of jacks to realize respective measurement functions, and the wireless transceiver is used for external Send measurement data.

The several measurement circuits are connected to AD converters respectively, and the AD converters are connected to a microcontroller, and the microcontrollers are respectively connected to a digital calibration network, an oscillator clock generation circuit and a wireless communication protocol processor, and the AD conversion The device is connected to the wireless communication protocol processor, the wireless communication protocol processor is connected to the wireless transceiver, and the wireless transceiver is connected to the antenna.

The microcontroller controls the AD converter to convert the measured analog signal into a digital measurement value. During the conversion process, the internal circuit of the AD converter measures a set of digital calibration values and transmits them to the digital calibration network through the microcontroller. At the same time, the digital The calibration value of the calibration network is sent to the AD converter through the microcontroller to improve the conversion accuracy. After the conversion of the AD converter is completed, the microcontroller is notified that the conversion has been completed, and the microcontroller sends a processing signal to the wireless communication protocol processor. The wireless communication protocol After receiving the signal, the processor processes the digital measurement value converted by the AD converter. After the processing is completed, the processed measurement data is sent to the wireless transceiver, and the wireless transceiver sends the processed measurement data to the data center in a wireless form through the antenna. A display processing part, the data display processing part includes a wireless transceiver with an antenna.

The data display processing part includes a tablet computer, a mobile phone, a display board, a computer and/or other intelligent external display processing devices.

The housing is provided with a USB interface.

The housing includes a power circuit.

A liftable rotary gear switch is arranged on the housing.

The plurality of measurement circuits include a voltage measurement circuit, namely a first measurement circuit, a resistance measurement circuit, a second measurement circuit, a current measurement circuit, a third measurement circuit, a capacitance measurement circuit, a fourth measurement circuit, and an inductance measurement circuit The circuit is the fifth measurement circuit; the housing is provided with a rotary gear switch that can be lifted up and down, and the rotary gear switch can be raised by pressing the switch. The switch is in the voltage measurement gear at the initial position of each power-on. Use the high-impedance state of the voltage measurement port to prevent damage to the measurement station due to destructive input conditions or overload conditions that the user mistakenly connects to other gear ports before power-on. (It is not necessarily limited to these functions, it can also be other measurement functions through programming, and various measurement functions can be expanded through programming).

A plurality of jacks are arranged on the side of the housing, and these jacks include a common jack as a reference position for signal measurement; the jacks are adapted to the measurement plug-in wire, and one end of the measurement plug-in wire is a plug connector , and the other end is the measuring head. (There are also situations where multiple ports complete a measurement function).

The housing includes a reserved measurement circuit space, and the jacks on the housing are distributed into an octopus-like multi-port structure.

The technical effect of the utility model is as follows:

The wireless multifunctional digital measuring station (MeterHUB) of the present utility model deletes all redundant instrument external structures irrelevant to measurement, that is, it does not include the data display processing part, and only includes the measurement function inside, leaving only the rotating gear that can be lifted and lowered outside. Switches and test jacks, and the measured data is sent to the physically separated DisplayPort by means of wireless data transmission. Therefore, the miniaturization of the measuring equipment and the mobile portability of the equipment are achieved. At the same time, the wireless multi-functional digital measuring station (MeterHUB) has reserved multiple sets of measurement circuits and interface circuits. When the product needs to be upgraded, it is only necessary to program the wireless multi-functional digital measuring station (MeterHUB) to realize new measurement functions. It is not necessary to re-develop the hardware. Even if the original wireless multi-functional digital measuring station (MeterHUB) cannot realize new measurement functions through simple programming, the upgrade of the hardware is only an upgrade of the wireless multi-functional digital measuring station (MeterHUB). It is not necessary to update the hardware circuit of the display processing part. The wireless multi-functional digital measuring station (MeterHUB) has a multi-port structure similar to that of an octopus arm, which leaves an evolution direction for various portable instruments while the overall system planning remains unchanged. The wireless multi-functional digital measuring station (MeterHUB) can use tablets, mobile phones, display boards, computers and other intelligent external display processing devices as data processing platforms and display interfaces. Using these devices can easily achieve high-quality, highly flexible, and rich information At the same time, it can perform statistical analysis, processing and storage of data. When the software of the display processing part is upgraded, it is only necessary to develop a new version of the software and reinstall the new version of the software on tablets, mobile phones, display boards, computers and other intelligent external display processing devices. Therefore, product upgrades Development is more convenient and cheap.

The utility model solidifies the design of the measurement hardware system to a large extent, shifts the main direction of product updating to the direction of application software development, and has more cost advantages and speed advantages in meeting various needs of customers. The wireless multi-functional digital measuring station (MeterHUB) can be forced to be in the voltage measurement gear when it is turned on in the structural design. Since the voltage measurement port is in a high-impedance state, it can prevent the user from mistakenly connecting to other gears before starting. The destructive input conditions or Damage to the meter due to overload conditions. When the button switch is turned on, the measurement function of the wireless multi-function digital measuring station is first forced to be in the voltage measurement position (the wireless multi-function digital measuring station is forced to be in the voltage measurement position when the power is turned on), thus effectively protecting the wireless multi-function digital measurement station (MeterHUB).

Description of drawings

Fig. 1 is a schematic diagram of the circuit structure principle of the wireless multifunctional digital measuring station implementing the utility model.

Figure 2 is a schematic diagram of the application of the wireless multifunctional digital measurement station.

Figure 3 is an application diagram of a wireless multi-function digital measurement station showing a USB port.

Reference signs are listed as follows: 2-AD converter; 3-wireless communication protocol processor; 4-wireless transceiver; 5-oscillator clock generation circuit; 6-microcontroller; 7-USB interface circuit; 8-antenna ;9-data display processing part: tablet computer or mobile phone or display kanban or computer or other intelligent external display processing equipment; 10-power supply circuit; 11-digital calibration network; 12-shell; Measuring head; 15-plug connector; 16-object to be measured; 17-liftable rotary gear switch; 101-the first measuring circuit; 102-the second measuring circuit; 1N-the Nth measuring circuit; H1- The first jack; H2-the second jack; HN-the Nth jack; PH-the public jack.

Detailed ways

Below in conjunction with accompanying drawing (Fig. 1-Fig. 3) the utility model is described.

Fig. 1 is a schematic diagram of the circuit structure principle of the wireless multifunctional digital measuring station implementing the utility model. Figure 2 is a schematic diagram of the application of the wireless multifunctional digital measurement station. Figure 3 is an application diagram of a wireless multi-function digital measurement station showing a USB port. As shown in Figures 1 to 2, the wireless multifunctional digital measurement station (also called a measurement device or equipment or system) includes a housing 12, and the housing 12 includes a multifunctional digital measurement circuit part, excluding data The display processing part, the housing 12 is provided with a wireless transceiver 4 and several pairs of jacks (for example, the first jack H1 and the public jack PH, the second jack and the public jack PH, until the first N jacks and the public jack PH. Obviously, wherein the public jack PH is public or shared), the multifunctional digital measurement circuit part includes several measurement circuits (for example, the first measurement circuit 101, the second measuring circuits 102, until the Nth measuring circuit 1N), the several measuring circuits form a one-to-one connection relationship with the several pairs of jacks, so as to realize respective measuring functions (that is to say, a jack Representing (or multiple sockets may complete a measurement function) a measurement function), the wireless transceiver 4 is used to send measurement data to the outside. The several measuring circuits are respectively connected to AD converter 2, and said AD converter 2 is connected to microcontroller 6, and said microcontroller 6 is respectively connected to digital calibration network 11, oscillator clock generation circuit 5 and wireless communication protocol processing device 3, the AD converter 2 is connected to the wireless communication protocol processor 3, the wireless communication protocol processor 3 is connected to the wireless transceiver 4, and the wireless transceiver 4 is connected to the antenna 8. The microcontroller 6 controls the AD converter 2 to convert the measured analog signal into a digital measurement value. During the conversion process, the internal circuit of the AD converter 2 measures and generates a set of digital calibration values that are transmitted to the digital calibration by the microcontroller 6. Network 11, the calibration value of digital calibration network 11 is transmitted to AD converter 2 by micro-controller 6 to improve the precision of conversion, AD converter 2 notifications micro-controller 6 after conversion is completed, and micro-controller 6 is to wireless The communication protocol processor 3 sends a processing signal, and the wireless communication protocol processor 3 processes the digital measurement value converted by the AD converter 2 after receiving the signal, and sends the processed measurement data to the wireless transceiver 4 after the processing is completed, and the wireless transceiver 4 Send the processed measurement data to the data display processing part 9 in a wireless form through the antenna 8, and the data display processing part 9 includes a wireless transceiver with the antenna 8. The data display processing part 9 includes a tablet computer, a mobile phone, a display board, a computer and/or other intelligent external display processing devices. The housing 12 is provided with a USB interface 7 . The housing 12 includes a power supply circuit 10 . The casing 12 is provided with a rotary gear switch 17 that can be lifted up and down. The plurality of measuring circuits include a voltage measuring circuit, namely a first measuring circuit 101, a resistance measuring circuit, namely a second measuring circuit 102, a current measuring circuit, namely a third measuring circuit, a capacitance measuring circuit, namely a fourth measuring circuit, and The inductance measurement circuit is the fifth measurement circuit; the housing 12 is provided with a liftable rotary gear switch 17, which is in the voltage measurement gear every time the power is turned on, and the high resistance state of the voltage measurement port is utilized to prevent the Damage to the measurement station due to destructive input conditions or overload conditions where the user misconnects the other gear ports. Each pair of jacks includes a common jack PH, said jack is adapted to the measurement patch cord 13, one end of the measurement patch cord is a plug joint 15, and the other end is a measuring head 14 (the measuring head 14 is used for Connect the object under test 16). The casing 12 includes a reserved measurement circuit space, and the jacks on the casing 12 are distributed into an octopus-like multi-port structure.

The content of the utility model relates to the field of traditional portable multi-purpose digital instrument products. Instrument products in this application field require flexible functions and can measure as many electrical parameters as possible with a single machine, so they are commonly called digital multimeters. In the traditional design, the measurement and display components of the instrument are combined in a plastic box that is easy to hold. For the sake of cost saving, the pixels and display area that the display can accommodate are limited. The application mainly involves professional measurement fields. Today, with the rapid development of science and technology in this industry, digital multimeters still maintain a traditional style, staying at the level of engineering and technical personnel and technicians. In fact, a digital multimeter that can integrate more functions has broad development prospects, and it will become one of the electrical tools that are very much needed by all walks of life and families. As long as we can further improve the traditional application display interface, use hand-held high-tech products that are well understood, easy to operate, and owned by almost everyone, such as mobile terminals such as tablet computers and mobile phones, and separate the measurement system from the display system, we will It can produce a new type of instrument with low cost, smaller size, and better functions, displays, and application interfaces than traditional digital multimeters.

The utility model is a brand-new design scheme of a multifunctional digital measuring station (MeterHUB) based on mobile platform wireless communication, and has the following characteristics: 1. The wireless multifunctional digital measuring station (MeterHUB) adopts a fully simplified test hardware structure, and deletes For all redundant instrument external structures that have nothing to do with measurement, multiple sets of measurement circuits are reserved inside, and only function selection knobs and test jacks are left on the outside. There is a one-to-one relationship between the measurement function and the test jack on the function selection knob. When measuring a certain parameter, turn the function selection knob to make the corresponding measurement circuit inside the circuit work, and at the same time insert the test line into the jack corresponding to the measurement function. Parameter measurement can be carried out by connecting the connection line to the object under test. 2. The wireless multifunctional digital measuring station (MeterHUB) is designed with data wireless external transmission components. When it is working normally, the internal measuring circuit of the wireless multifunctional digital measuring station (MeterHUB) will first measure the object to be measured, and the measured value will pass through the internal circuit. After processing, the measured data is transmitted to tablets, mobile phones, display boards, computers and other intelligent external display processing devices through wireless external transmission components. These processing devices are installed with programs for processing and displaying measurement data, and the data can be realized by running the programs. Statistical analysis, processing and storage. At the same time, tablets, mobile phones, display boards, computers, and other intelligent external display processing devices have rich system resources, which can easily achieve high-quality, highly flexible, and information-rich display effects. The wireless multi-functional digital measuring station (MeterHUB) is based on the tablet PC, mobile phone, display board, computer and other intelligent external display processing equipment widely owned by the user. The cost has increased, but the measurement data storage, statistics and other deep computing processing capabilities have been obtained. This design largely consolidates the design of the measurement hardware system, and shifts the main direction of product updating to the direction of application software development. Therefore, it has more cost advantages and speed advantages in meeting various needs of customers. 3. The reason why the wireless multi-functional digital measuring station (MeterHUB) is called MeterHUB is that its conception already includes a multi-port structure similar to the octopus arm and foot, and multiple sets of measurement circuits are reserved inside, and multiple sets are reserved outside. The wiring port, under the condition that the overall concept of the system remains unchanged, has reserved the evolution direction for the development of various portable instruments with different functions.

The implementation of the utility model is as shown in Fig. 1 and Fig. 2, the power supply circuit 10 provides the power supply during work for the wireless multifunctional digital measuring station (MeterHUB), and the oscillator clock generating circuit 5 provides the working oscillation clock signal for the measuring circuit and the microcontroller 6 , the measurement circuit is turned on through the liftable rotary gear switch 17, one end of the measurement circuit is connected to the object under test 16 for measurement, and the measured analog parameter signal is transmitted to the AD converter 2, and the microcontroller 6 controls the AD converter 2 to perform the measurement. The conversion converts the measured analog signal into a digital measurement value. During the conversion process, the internal circuit of the AD converter 2 measures a set of digital calibration values and transmits them to the digital calibration network 11 through the microprocessor 6. At the same time, the digital calibration network 11 is converted. The value is transmitted to the AD converter 2 by the microprocessor 6 for AD conversion to improve the accuracy of the conversion. After the conversion of the AD converter 2 is completed, the microcontroller 6 is notified that the conversion has been completed, and the microcontroller 6 sends a message to the wireless communication protocol processor 3. Process the signal, after receiving the signal, the wireless communication protocol processor 3 processes the digital measurement value converted by the AD converter 2, and sends the processed measurement data to the wireless transceiver 4 after the processing is completed. Send the processed measurement data to tablets, mobile phones, display boards, computers and other intelligent external display processing devices. Simultaneously the digital measurement value after AD converter 2 conversion also can be sent to microcontroller 6, and microcontroller 6 carries out storage processing, connects the external device with USB port (USB interface 7) through USB interface 7 (USB interface circuit) then. The measurement data display processing device sends the measured digital measurement values to tablet computers, mobile phones, display boards, computers and other intelligent external display processing devices. Tablet PCs, mobile phones, display boards, computers, and other intelligent external display processing devices are equipped with data processing programs, and the running programs can store, display, statistically analyze and perform other in-depth calculations on data obtained through wireless or USB connections deal with. By setting the measurement function selection switch and the selection switch in the signal processing circuit, the data of different functions such as voltage, inductance, capacitance, current and resistance (expandable when the basic function of electrical measurement is determined) can be realized. Under this MeterHUB framework, personal medical instruments and car detection HUB functions can also be defined separately.

It is pointed out here that the above description is helpful for those skilled in the art to understand the present invention, but does not limit the protection scope of the present invention. Any equivalent replacement, modification and improvement and/or simplified implementation of the above descriptions without departing from the essence of the present invention shall fall within the protection scope of the present invention.

Claims (9)

1. The wireless multifunctional digital measurement station is characterized in that it includes a housing, which includes a multifunctional digital measurement circuit part, does not include a data display processing part, and is provided with a wireless transceiver and a number of plug-in pairs on the housing. hole, the multifunctional digital measurement circuit part includes several measurement circuits, and the several measurement circuits form a one-to-one connection relationship with the several pairs of jacks to realize their respective measurement functions. The wireless transceiver is used for Send measurement data out. 2. The wireless multifunctional digital measuring station according to claim 1, characterized in that, the several measuring circuits are respectively connected to AD converters, and the AD converters are connected to microcontrollers, and the microcontrollers are respectively connected to Digital calibration network, oscillator clock generation circuit and wireless communication protocol processor, the AD converter is connected to the wireless communication protocol processor, the wireless communication protocol processor is connected to the wireless transceiver, and the wireless transceiver is connected to antenna. 3. The wireless multifunctional digital measuring station according to claim 2, wherein the microcontroller controls the AD converter to convert the measured analog signal into a digital measurement value, and the AD converter internal circuit measures during the conversion process Generate a set of digital calibration values and transmit them to the digital calibration network through the microcontroller, and at the same time, the calibration values of the digital calibration network are transmitted to the AD converter through the microcontroller to improve the conversion accuracy, and the AD converter will notify the microcontroller after the conversion is completed After the conversion is completed, the microcontroller sends a processing signal to the wireless communication protocol processor. After receiving the signal, the wireless communication protocol processor processes the digital measurement value converted by the AD converter. After the processing is completed, the processed measurement data is sent to the wireless transceiver. The wireless transceiver sends the processed measurement data to the data display processing part in a wireless form through the antenna, and the data display processing part includes a wireless transceiver with an antenna. 4. The wireless multifunctional digital measuring station according to claim 3, wherein the data display processing part includes a tablet computer, a mobile phone, a display board, a computer and/or other intelligent external display processing devices. 5. The wireless multifunctional digital measuring station according to claim 1, wherein a USB interface is provided on the housing. 6 . The wireless multifunctional digital measuring station according to claim 1 , wherein a power circuit is included in the housing. 7 . 7. The wireless multifunctional digital measuring station according to claim 1, characterized in that, the housing is provided with a button switch. 8. The wireless multifunctional digital measuring station according to claim 1, wherein said several measuring circuits comprise a voltage measuring circuit which is the first measuring circuit, a resistance measuring circuit which is the second measuring circuit, and a current measuring circuit That is the third measurement circuit, the capacitance measurement circuit is the fourth measurement circuit, and the inductance measurement circuit is the fifth measurement circuit; the housing is provided with a rotary gear switch that can be raised and lowered, and the rotary gear can be moved by pressing the switch. The position switch is raised, and the switch is in the voltage measurement position at the initial position of each power-on. The high-impedance state of the voltage measurement port is used to prevent the destructive input conditions or overload conditions caused by the user’s mistaken connection to other gear ports before power-on. Measuring station damaged. 9. The wireless multifunctional digital measuring station according to claim 1, wherein the housing side is configured with a plurality of jacks, and these jacks include a common jack as a reference position for signal measurement; The jack is adapted to the measuring plug-in wire, one end of the measuring plug-in wire is a plug connector, and the other end is a measuring head.