CN114710567A - Signal transmitting method, transmitting device and information interaction system - Google Patents

Abstract

The invention relates to a signal sending method, a sending device and an information interaction system, wherein the sending device comprises: the device comprises a first power supply, a first chip, a processor, a detection board, a first detection unit, at least one first communication module, at least one second communication module and at least one first communication interface. The first chip and the processor are arranged, so that power can be distributed by the processor after the power is transmitted to the power supply port of the first chip, power supply or non-power supply to the first communication module and the third communication module is further realized, damage caused by overhigh voltage or current after the sensors with different voltages or currents are connected with the sending device is avoided, the sensors can be selected to be provided with voltage or current matched with the type, voltage or current of the sensors, the detection board can detect the power supply state in real time after power supply, abnormal data can be uploaded to EAP and MES if abnormal data are generated, and normal data can be uploaded to EAP and MES if normal data are generated.

Description

Signal transmitting method, transmitting device and information interaction system

Technical Field

The invention relates to the field of information exchange in semiconductor manufacturing, in particular to a signal sending method, a signal sending device and an information interaction system, which are mainly used for converting equipment which does not support an SECS/GEM protocol into a uniform protocol and transmitting the uniform protocol to an automatic control system.

Background

With the development of semiconductor process, semiconductor manufacturers are required to have strong competition in diverse global markets, and the manufacturers must be able to maximize the use of equipment, optimize the manufacturing process and process parameters, increase the throughput (throughput), reduce the preparation time for mass production, and provide a more flexible and convenient working environment to make the production more efficient. Due to the increased cost and complexity of the manufacturing process, equipment automation has become an essential part of front-end semiconductor manufacturing. Today, each of the former processing (FAB) plants is automated to varying degrees. The capabilities of device monitoring, data collection, alarm and event management are all basic automation requirements.

Because the 12-inch wafer production line adopts a single-wafer continuous flow production mode, and for a 12-inch wafer factory, the unit price and the cost of each wafer are quite high, any wafer is scrapped, and the loss is very disastrous. In addition, after analyzing the sources of particles (particles) attached to the wafer by some famous semiconductor clean room design company in germany, it is pointed out that human body is the most main source of particles, and the particles are the largest killer for influencing the quality of semiconductor products, so the most effective way to improve the reliability of the product quality is to reduce the direct contact between human and product as much as possible, so the wafer factory needs to implement high automation to ensure efficient and accurate production. How to integrate the manufacturing execution system with the semiconductor device to efficiently and accurately control the device is important, especially for a bridge between them, i.e., an Equipment Automation (EAP) system.

EAP (Equipment Automation programming) realizes real-time monitoring on the production line, and is an indispensable control system for factory Automation. The EAP system is closely related to the machine in the FAB, and the design and development of the system must be consistent with the actual production flow of the machine in the production line, so as to control the production of the machine.

The EAP is a bridge between an MES (manufacturing execution management system) and a device, and performs data transmission with a machine through an SECS (Semiconductor Equipment Communication Standard)/GEM (Generic Equipment Model) protocol. The SECS/GEM protocol is an international communication protocol which must be followed by semiconductor equipment (equipment is called as a machine in the semiconductor industry), and the EAP communicates with the equipment through the SECS/GEM protocol, transmits data and sends an instruction to control the equipment to carry out production and processing according to a predefined flow, so that the remote control and state monitoring of the equipment are realized, and the automation of the operation of the equipment is realized.

SECS/GEM is a common communication protocol between upper-level systems and automation equipment in the semiconductor industry, and through the protocol, starting or stopping instructions can be sent to the equipment, process parameters can be changed, and recipes can be selected. The SECS/GEM protocol communication program is usually hosted in field industrial computers (PCs) and TCP/IP network implementations, and plays a role of a repeater in the networking function of the device, which requires the cooperation of functional interfaces related to the design of a programmable logic microcontroller (PLC) on the bottom layer of the device. Because the equipment is in the bottom layer, if the equipment does not have the SECS/GEM communication protocol, the equipment cannot communicate with the FAB or even transmit the message to the MES system. In order to realize full automation, the communication between the existing equipment and the control system has the following problems:

the lowest layer equipment in the factory cannot communicate with the EAP by using the SECS/GEM protocol, so that the upper MES cannot acquire the equipment condition provided by the EAP. If the equipment needs to communicate with the EAP, equipment manufacturers in the plant need to be contacted to upgrade and modify the equipment, and the modification of the equipment is high in cost, long in machine modification time and large in equipment modification, so that the capacity is influenced, and the promotion of an automatic flow in the plant is influenced.

Secondly, because the communication protocols of the PLC devices are numerous, for example, the PLC devices of siemens include 3964R protocol, MPI protocol, PPI protocol, and free communication port protocol, the PLC devices of ohm dragon include Host Link protocol, ControlLink protocol, schneider include modbus tcp protocol, etc., the communication protocol layers are difficult to unify, and great development and operation and maintenance costs are caused to the device manufacturers and the systems at the factory end.

And (III) the upgrading and transformation of the equipment needs to be developed by a professional engineer familiar with SECS/GEM communication logic, SECS/GEM information and SECS projects need to be established one by one on a host end in a communication program development and verification mode, the information content can reach hundreds, the work content is very complicated, and a large amount of manpower and material resources are needed. Moreover, an engineer manually writes the equipment information uploading system, and manually operates and writes the equipment information, so that the reliability is at risk, the development period of SECS/GEM communication is long, the implementation cost is high, and the intelligentization of a factory is hindered.

And (IV) after the professional engineers compile the equipment information, the MES needs to manually upload the equipment information, and the manual uploading mode influences the production capacity of the semiconductor manufacturing and increases the uncertainty risk.

Disclosure of Invention

In view of the above-mentioned shortcomings in the prior art, an object of the present invention is to provide a signaling method, a transmitting device and an information interaction system, so as to solve one or more problems in the prior art.

In order to achieve the purpose, the technical scheme of the invention is as follows:

the signal transmitting method comprises the following steps:

receiving data;

configuring a first function;

supplying power;

distributing power supply;

detecting the power distribution state, and if the power distribution state is abnormal, reporting abnormal data; if normal, normal data is transmitted.

The distributing power supply comprises the steps of:

detecting current information or detecting voltage information;

acquiring current information or the voltage information.

Further, the signaling method further includes configuring a second function, and the configuring of the second function includes the steps of:

configuring an alarm upper limit interval value;

configuring an alarm lower limit interval value;

configuring an upper alarm limit value in the upper alarm limit interval value;

and configuring a lower alarm limit value in the lower alarm limit interval value.

Further, the method for signaling further includes configuring a third function, and the configuring of the third function includes the steps of:

configuring alarm times;

and configuring alarm delay time.

Further, the method for signaling further includes configuring a fourth function, and the configuring of the fourth function includes the steps of:

configuring a gateway:

configuring a subnet mask;

the DNS is configured.

Further, the power supply includes any one of power supply or POE power supply.

Further, the configuration of the first function includes the steps of:

configuring brand information;

configuring model information;

configuration current data information or configuration voltage information.

Further, the signaling method includes configuring a fifth function, and the configuring of the fifth function includes checking version information.

Correspondingly, the invention also provides a sending device, which comprises

A first power source for providing electrical energy;

a first chip connected to the power supply;

a processor in communication with the first chip and configured to distribute power;

the detection board is connected with the processor and used for supplying power to equipment;

the first detection unit is communicated with the processor and used for acquiring the power supply state of equipment;

the first communication module is provided with one part connected with the first chip, the other part connected with the detection board and the first detection unit respectively, and the first communication module is used for acquiring hardware information of first equipment, transmitting data and feeding back a power supply state;

at least one second communication module connected to the first chip and configured to acquire second device hardware information;

at least one first communication interface connected to the first chip and configured to transmit data.

The sending device further comprises at least one third communication module, one part of the third communication module is communicated with the first chip, the other part of the third communication module is respectively connected with the detection board and the first detection unit, and the third communication module is used for acquiring hardware information of a third device of the device and feeding back a power supply state.

Furthermore, the sending device further comprises at least one universal serial bus and at least one multimedia interface, wherein the universal serial bus is used for connecting external equipment, and the multimedia interface is used for connecting multimedia equipment.

Furthermore, the sending device further comprises a shell, the shell is further provided with a display screen and at least one key, and the display screen and the key are respectively connected with the first chip.

Correspondingly, the invention also provides an information interaction system which comprises the sending device and a conversion device connected with the sending device.

Compared with the prior art, the invention has the following beneficial technical effects

The first chip and the processor are arranged, so that power can be distributed by the processor after the power is transmitted to a power supply port of the first chip, power supply or non-power supply to the first communication module and the third communication module is further realized, damage caused by overhigh voltage or current after sensors with different voltages or currents are connected with the sending device is avoided, the sensors can be selected to be provided with voltage or current matched with the type, voltage or current of the sensors, the detection board can detect the power supply state in real time after power supply, abnormal data can be uploaded to EAP and MES if the abnormal data are generated, and normal data can be uploaded to EAP and MES if the normal data are generated.

Furthermore, the conversion device of the invention can convert the collected analog signals into digital signals and transmit the digital signals in the standard protocol after filtering processing by devices which do not support the standard protocol, such as a sensor, so as to realize the unification of communication protocol layers among different devices, and reduce development and operation and maintenance costs for device manufacturers and factory-side systems.

Furthermore, the conversion device does not need to be developed by engineers familiar with SECS/GEM communication logic, so that manpower and material resources are saved, working contents are reduced, the risk of reliability caused by manual equipment message writing can be avoided, and the implementation cost is effectively reduced.

And further, the converted data is uploaded by a serial communication protocol or a network communication protocol, so that the influence on the productivity of semiconductor manufacturing in a manual uploading mode is effectively avoided, and the uncertainty risk is reduced.

Drawings

Fig. 1 is a schematic diagram illustrating an external configuration of a signal transmission method, a transmission device and a transmission device in an information interaction system according to an embodiment of the invention.

Fig. 2 is a schematic diagram illustrating an internal structure of a transmitting apparatus in a signaling method, a transmitting apparatus and an information interaction system according to an embodiment of the invention.

Fig. 3 is a schematic structural diagram of a signaling method, a signaling device, and an information interaction system in an information interaction system according to an embodiment of the invention.

Fig. 4 is a schematic structural diagram illustrating a signal sending method, a sending device, and a conversion device in an information interaction system according to an embodiment of the invention.

FIG. 5 is a diagram illustrating a signaling method, a signaling device, and a conversion protocol of a conversion device in an information interaction system according to an embodiment of the invention

In the drawings, the reference numbers: 1. a transmitting device; 100. a housing; 101. a display screen; 102. pressing a key; 103. a first communication module; 104. a second communication module; 105. a third communication module; 106. a first communication interface; 107. a universal serial bus; 108. a high-definition multimedia interface; 109. a first power supply; 110. a first chip; 1100. a second communication interface; 111. a processor; 112. detecting a plate; 113. a first detection unit; 1130. a first detection module; 1131. a second detection module; 114. a second chip; 115. a power supply port; 2. a conversion device; 20. a second detection unit; 200. a third detection module; 201. a fourth detection module; 202. a converter; 203. a microcontroller; 204. a second power supply; 205. a fourth communication module; 206. a fifth communication module; 3. a sensor.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the signal transmission method, the signal transmission device and the information interaction system according to the present invention are described in detail below with reference to the accompanying drawings and the detailed description. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are all used in a non-precise scale for the purpose of facilitating and distinctly aiding in the description of the embodiments of the present invention. To make the objects, features and advantages of the present invention comprehensible, reference is made to the accompanying drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the present invention, so that the present invention has no technical significance, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention.

Referring to fig. 1 and fig. 2, a specific structure of the transmitting apparatus 1 according to a first embodiment of the present invention is as follows:

the first power supply 109 is used for supplying electric energy, and specifically, in the transmitting device 1 according to the first embodiment of the present invention, the first power supply 109 is preferably a DC power supply, that is, a regulated DC power supply, which can convert 220V and 50Hz ac power into DC power.

A first chip 110, the first chip 110 being connected to the first power supply 109, the first chip 110 being configured to receive data, configuration parameters, and supply power.

And the processor 111 establishes serial communication with the first chip 110 and is used for distributing power.

The detection board 112, the detection board 112 is used for supplying power to the devices connected to the first communication module 103 and/or the third communication module 105, the detection board 112 may be a part of the first chip 110, or may be a structure independent of the first chip 110, and the present invention is not further limited thereto.

Specifically, in the transmitting apparatus 1 according to the first embodiment of the present invention, the device is specifically a PLC, a PC, or a sensor or a front-end device that does not support a standard protocol, such as an SECS/GEM communication protocol or a TCP/IP communication protocol.

Further, with continued reference to fig. 2, the pickup board 112 provides a required driving power for the device connected to the first communication module 103, and the pickup board 112 also provides a required driving power for the device connected to the third communication module 105.

The first detecting unit 113, the first detecting unit 113 and the processor 111 establish communication, and the first detecting unit 113 is configured to obtain a power supply state of the device connected to the first communication module 103 and/or the third communication module 105.

Specifically, please refer to fig. 2, in the transmitting apparatus 1 according to the first embodiment of the present invention, an input end of the first detecting unit 113 is connected to the first communication module 103 and the third communication module 105, an output end of the first detecting unit 113 is connected to the processor 111, the first detecting unit 113 includes a first detecting module 1130 and a second detecting module 1131, the first detecting module 1130 is configured to obtain a first sampling analog signal and output a current signal, and the second detecting module 1131 is configured to obtain a second sampling analog signal and output a voltage signal. The first detecting module 1130 outputs a current signal from the sampled analog signal obtained from the device, and the second detecting module 1131 outputs a voltage signal from the sampled analog signal obtained from the device, where the current signal and the voltage signal can be transmitted to the processor 111 in a communication manner, and the obtained current signal and the obtained voltage signal are convenient for numerical monitoring.

Referring to fig. 2, the sending apparatus 1 further includes at least one first communication module 103, where the first communication module 103 is configured to obtain hardware information of the first device. Specifically, in the transmitting device 1 according to the embodiment of the present invention, the first communication module 103 has four hundred mega ethernet interfaces, the first communication module 103 is preferably a sensor communication module, the first device hardware information specifically refers to sensor information connected to the sensor communication module, and the sensor information may be an actual value measured by a sensor that has been converted by the conversion device 2 (specifically, described in detail in the conversion device below), or may be sensor information directly connected to the first communication module 103.

Further, please refer to fig. 2, the input end of each of the first communication modules 103 is connected to the output end of the second chip 114, and the second chip 114 is preferably an ethernet switch chip, and the ethernet switch chip is used to expand one communication interface into multiple communication interfaces.

Further, please refer to fig. 2 continuously, the sending apparatus 1 further includes at least one second communication module 104, the second communication module 104 establishes communication with the first chip 110, and the second communication module 104 is configured to obtain second device hardware information. Specifically, in the sending apparatus 1 according to the embodiment of the present invention, the second communication module 104 is preferably a serial communication module, and the serial communication module may obtain the hardware information of the second device through an RS232 protocol or an RS485 protocol, where the hardware information of the second device is specifically PLC hardware information or PC hardware information.

Further, please refer to fig. 2 continuously, the sending apparatus 1 further includes at least one first communication interface 106, an output portion of the first communication interface 106 is used for connecting the EAP, an input portion of the first communication interface 106 is connected to the first chip 110 and establishes communication, the first communication interface 106 is used for fast transmitting data using the TCP/IP protocol gigabit network, the first communication interface 106 supports POE power supply, and can provide power to the power supply port 115 of the first chip 110 while transmitting data, and then the first chip 110 transmits the power to the processor 111 for power distribution management and control.

Further, please refer to fig. 2 again, the sending apparatus 1 further includes at least one third communication module 105, the third communication module 105 is configured to obtain hardware information of a third device, an input portion of the third communication module 105 is connected to one output portion of the first chip 110, in this embodiment, the third communication module 105 is also preferably a serial communication module, but the serial communication module obtains the hardware information of the third device through a CAN bus or an RS485 communication protocol, the hardware information of the third device is specifically front-end hardware information, preferably, the front-end hardware is preferably a device capable of establishing the RS485 communication protocol or establishing the CAN bus protocol, and the devices also include a sensor, a PLC, or a PC.

Further, with reference to fig. 2, the sending apparatus 1 further includes at least one universal serial bus 107, a portion of the output terminals of the first chip 110 is connected to the universal serial bus 107, the universal serial bus 107 may be any one of a wired universal serial bus or a wireless universal serial bus, and the wafer ID (silicon wafer number) and lot ID (lot number) of the code scanning device obtaining device may be connected through the universal serial bus 107. Similarly, a part of the output terminals of the first chip 110 may be further connected to a high-definition multimedia interface 108, where the high-definition multimedia interface 108 is used to connect to a plug-in multimedia device, and the high-definition multimedia interface 108 is used to transmit uncompressed audio and video signals, and the multimedia device may be a set-top box, a display, a computer, a television, or other devices.

Referring to fig. 1, the transmitting device 1 further includes a housing 100, the first chip 110, the processor 111, the detecting board 112, the first detecting unit 113, and the second chip 114 are disposed inside the housing 100, and the first communication module 103, the second communication module 104, the third communication module 105, the first communication interface 106, and the universal serial bus 107 are disposed on the housing 100. Similarly, a display 101 and at least one key 102 are disposed on the housing 100, and the display 101 and the key 102 are respectively connected to the first chip 110.

Accordingly, the present invention also provides a signal transmission method using the above transmission apparatus 1, comprising the following steps:

s1: receiving data; referring to fig. 2, after the sensor 3 is connected to the conversion device 2, the actual value measured by the sensor is uploaded by the TCP/IP protocol, the ethernet interface of the first communication module 103 receives the sensor information, i.e. the actual value measured by the sensor, by the TCP/IP protocol, the actual value measured by the sensor is uploaded to the first chip 110 through the second chip 114 and the second communication interface 1100 of the first chip 110, and although the actual value measured by the sensor is received by the first chip 110, the actual value measured by the sensor is not sent in a communication manner because the first chip is in a non-communication state, i.e. powered off.

S2: configuring a first function; one of the keys 102 is pressed down and a first function, i.e. a data reading and configuring function, is entered in the display 101, and the configuring step of the first function is as follows:

s200: the method comprises the steps of configuring a brand, wherein the brand of a sensor comprises Sensorision, ohm dragon omron or PLC brand, and the brand of Mitsubishi, ohm dragon, Pink, general, Schneider and the like, selecting the sensor brand corresponding to the first communication module 103, for example selecting the ohm dragon, turning up or down one of keys 102 to display different names of the brand, pressing down the other key 102 to confirm the situation until the display screen 101 displays that the ohm dragon appears, and entering the next configuration.

S201, configuring the model, selecting the corresponding sensor model on the display screen 101 through the key 102, for example, selecting ZX1-LD50A61, then pressing the key 102 for confirmation, and entering the next configuration.

S202, configuring voltage data information of the sensor or configuring current data information of the sensor. Taking the configuration voltage data information as an example, the voltage data input to the sensor in the display screen 101 is 10V.

Correspondingly, a second function can be configured while the brand, the model, the voltage data or the current data are configured, wherein the second function comprises an alarm upper limit value and an alarm lower limit value.

Specifically, with reference to fig. 2, the configuration of the alarm upper limit value and the alarm lower limit value includes the following steps:

s2030: selecting "alarm configuration function": by one of the keys 102 and selects "alarm configuration" in the display 101 and enters.

S2031: and configuring an alarm upper limit interval value, and inputting the alarm upper limit interval value into the display screen 101 to be 4.75V-5.25V.

S2032: and configuring an alarm lower limit interval value, and inputting an alarm upper limit interval value of 2.75V-3.25V into the display screen 101.

S2033: and configuring an upper alarm limit value in the upper alarm limit interval value, and inputting the upper alarm limit value to be 5.1V in the display screen 101.

S2034, configuring a lower alarm limit value in the lower alarm limit interval value, and inputting the lower alarm limit value to be 2.9V in the display screen 101.

The alarm upper limit interval value, the alarm lower limit interval value, the alarm upper limit fixed value and the alarm lower limit fixed value may be customized according to the specification of the sensor 3, and are not limited to the values configured in the embodiment.

After the configuration is completed, the connection state of the device is detected, in the transmitting apparatus 1 of the present embodiment, please refer to fig. 3, the transmitting apparatus 1 detects whether the sensor 3 is connected or not through the converting apparatus 2, and if so, the transmitting apparatus 1 detects whether the sensor 3 is connected or not

Of course, in other embodiments of the present invention, the sending apparatus 1 may also detect the connection state of the first hardware device through the first communication module 103, detect the connection state of the second hardware device through the second communication module 104, or detect the state of the third hardware device through the third communication module 105, and execute the power supplying step only after each hardware device is connected to the corresponding communication module.

Of course, in other embodiments of the present invention, if the PLC or PC is directly connected through the second communication module 104, and the sensor is also connected to the first communication module 103, the first function may be performed as follows:

and configuring the labels, for example, the labels of the PLCs include mitsubishi, ohm dragon, loose, general, schneider and the like, selecting the PLC label corresponding to the connection with the first communication module 103, for example, selecting "ohm dragon", displaying different names of the labels by turning up or down one of the keys 102 until the display screen 101 displays that "ohm dragon" appears, and then pressing down the other key 102 to confirm, so as to enter the next configuration.

And configuring the model, selecting the corresponding PLC model on the display screen 101 through the key 102, for example, selecting NX701, then pressing the key 102 to confirm, and entering the next configuration.

Configuring voltage data information of the sensor or configuring current data information of the sensor. Since the PLC or the PC does not need an additional power supply, the voltage data information or the current data information of the sensor may be directly configured on the display screen 101 through the key. Taking the configuration voltage data information as an example, the voltage data input to the sensor in the display screen 101 is 10V.

S3: supplying power; when the channel is turned on to supply power after the parameter configuration step is completed, the first power supply 109 may supply power according to the voltage data configured in step S202 or according to the current data configured in step S203, specifically, the power supply mode may select to supply power through the first power supply 109, the first power supply 109 supports 100V to 240V, and specifically, the first power supply 109 may provide power to the power supply port 115 on the first chip 110.

Of course, in other embodiments of the present invention, the power supply may be selected to use POE power through the first communication interface 106, and the first communication interface 106 transmits the power to the power supply port 115 on the first chip 110.

S4: distributing power supply; the first chip 110 transmits power to the processor 111 for power distribution management and control, and then supplies power required by the sensor to the detection board 112, and the detection board 112 supplies power required by the sensor to the sensor 3 connected to the first communication module 103.

After the power is supplied, the first detecting unit 113 monitors the power supply state, specifically, please refer to fig. 2, where the monitoring the power supply state includes the following steps:

s401, detecting current data information and/or detecting voltage data information; referring to fig. 2, the first detection module 1130 obtains current data information used by the device connected to the first communication module 103, or voltage data information used by the device connected to the first communication module 103 may also be obtained by the second detection module 1131.

S402, acquiring current data information and/or acquiring voltage data information; referring to fig. 2, the detected current data information or voltage data information is fed back to the processor 111.

S5, detecting the power distribution state, and reporting abnormal data if the power distribution state is abnormal; if the data is normal, the data is transmitted. Specifically, referring to fig. 2, the detected current data information or voltage data information is fed back to the processor 111, if the current data information or voltage data information exceeds the alarm upper limit interval value or the alarm lower limit interval value, it is determined as abnormal data, the processor 111 transmits the abnormal data to the first chip 110 in a communication manner, and the first chip 110 transmits the abnormal data to the EAP and the MES in a TCP/IP protocol manner through the first communication interface 106.

If the current data information or the voltage data information does not exceed the alarm upper limit interval value or the alarm lower limit interval value, it is determined as normal data, at this time, the processor 111 transmits the abnormal data to the first chip 110 in a communication manner, and the first chip 110 transmits the normal data to the EAP and the MES in a TCP/IP protocol manner through the first communication interface 106.

Correspondingly, a third function can be configured besides the configuration of the brand, the model, the voltage data, the current data, the alarm upper limit value and the alarm lower limit value, wherein the third function comprises alarm times and alarm delay time, and specifically, the configuration of the third function comprises the following steps:

firstly, selecting 'alarm set value frequency configuration' in a display screen 101 through one of keys 102 and entering, then inputting an alarm frequency value, for example, inputting the alarm set value frequency for three times, and giving an alarm if the alarm set value appears for three times continuously, otherwise, not giving abnormal data alarm if the alarm set value frequency is not exceeded.

And then quitting on the menu of the display screen 101, selecting 'alarm delay time configuration' in the display screen 101 again, and inputting alarm delay time in the display screen 101, wherein the alarm delay time is the time after the alarm exceeds, if abnormal data is not eliminated, the alarm is carried out again, for example, the alarm delay time is set to be thirty minutes, if the alarm is not cancelled after thirty minutes, the alarm is sent again, and a large amount of repeated abnormal data is prevented from being sent in a short time.

Further, in order to realize that the network of the sending device 1 can connect to the network of EAP, MES and establish communication, a fourth function needs to be configured, and the configuration of the fourth function includes the following steps:

s6, selecting the function of 'IP address configuration', firstly selecting 'IP address configuration' in the display screen 101 through one of the keys 102 and entering; assume that the IP address of the EAP, MES connected to the transmission apparatus 1 is 192.168.1.150.

S600: and configuring the gateway, and inputting the IP address of the gateway into the display screen 101 to be 192.168.1.1.

S601: a subnet mask is configured and the subnet mask is input in the display 101 as 255.255.255.0.

S602: the DNS address is configured and a subnet mask of 114.114.115.115 is entered in the display 101 and the DNS is a domain name resolution server that changes the web address to a server for the IP address.

S603: the transmission of the gateway, subnet mask, DNS address to the first chip 110 enables the first communication interface 106 to establish communication with the EAP and the MES.

Further, version information may also be viewed in the display 101, and the viewing of the version information selects "INFO" in the display 101 through one of the keys 102 and enters the version information in which the first chip 110 may be viewed.

Correspondingly, referring to fig. 3, the invention further provides an information interaction system, which includes a conversion device 2 connected to the sending device 1, wherein the conversion device 2 is used for converting the non-standard protocol into the standard protocol and transmitting the standard protocol from the sending device 1 to the EAP and the MES.

The specific structure of the conversion device 2 is described in detail below:

referring to fig. 4, the conversion apparatus 2 includes a second detection unit 20, and the second detection unit 20 is configured to obtain the first data. Specifically, in the conversion apparatus 2 provided in the first embodiment of the present invention, the second detection unit 20 includes at least one third detection module 200 and at least one fourth detection module 201, the third detection module 200 is configured to detect the first sampled analog signal of the sensor 3 and perform a linear ratio calculation through a voltage, the fourth detection module 201 is configured to detect the second sampled analog signal of the sensor 3 and perform a linear ratio calculation through a current, and specifically, the communication between the third detection module 200 and the fourth detection module 201 and the access sensor may be through APB bus communication. In the conversion apparatus 2 according to the first embodiment of the present invention, the detection unit may be connected to at least one input voltage and/or at least one input current, the output signal of the third detection module 200 is input to the converter 202 through the output terminal of the continuous voltage sensor of 0-10V, and the output signal of the fourth detection module 201 is input to the converter 202 through the output terminal of the continuous current sensor of 4-20 mA.

With reference to fig. 4, the conversion apparatus 2 further includes a converter 202, the converter 202 establishes a communication connection with the second detection unit 20, and the converter 202 is configured to convert the continuous analog signal into a discrete digital signal, specifically, convert the first sampled analog signal acquired by the third detection module 200 or the second sampled analog signal acquired by the fourth detection module 201 into a digital signal and output the digital signal. Preferably, in the conversion apparatus 2 according to the first embodiment of the present invention, the converter 202 is preferably an ADC chip.

The converter 202 operates on the principle that the spectrum above a certain frequency in the input signal is removed by a pre-filter, so that aliasing of high-frequency signals in samples is avoided. Then the analog signal of the sampling input is kept unchanged in a period of time by the sampling hold circuit, so that the subsequent circuit is convenient to convert into digital codes, the conversion is completed by quantization, the reference signal is divided into 2N sub-fields (N is the number of the digital output coding bits) by the quantizer, then the sub-field where the analog input is located after sampling is found out, and then the corresponding digital codes are output by the encoder (namely a digital processor).

With reference to fig. 4, the conversion apparatus 2 further includes a microcontroller 203, a communication connection is established between the microcontroller 203 and the converter 202, and the microcontroller 203 receives the digital signal output by the converter 202 and performs filtering calculation to obtain an actual value measured by the sensor 3.

With reference to fig. 4, the conversion apparatus 2 further includes a second power supply 204, a portion of output terminals of the second power supply 204 is connected to the input terminal of the detection unit mechanism, another portion of output terminals of the second power supply 204 is connected to the microcontroller 203, when the second power supply 204 is powered on, the microcontroller 203 is started, and the sensor 3 of the device is connected to the third detection module 200 or the fourth detection module 201, and the second power supply 204 can also provide a corresponding power supply for the device sensor.

Referring to fig. 4, the conversion apparatus 2 further includes a communication unit, the communication unit includes a fourth communication module 205 and a fifth communication module 206, wherein the fourth communication module 205 and the fifth communication module 206 are respectively connected to the microcontroller 203. Preferably, in the conversion device 2 according to the first embodiment of the present invention, the fourth communication module 205 is preferably an RS485 communication module, and the RS485 communication module obtains an actual value measured by the sensor calculated by the microcontroller 203 and performs data interaction through a serial communication standard, i.e., an RS-485 communication protocol. Likewise, the second communication module 104 is preferably a network communication module, which obtains actual values measured by the sensor calculated by the microcontroller 203 and enables data interaction between a plurality of different networks through TCP/IP (transmission control protocol/internet protocol).

Correspondingly, the invention also provides a conversion method using the conversion device, which comprises the following steps:

a1: referring to fig. 4 and 5, after the second power source 204 is powered on, it provides power to the third detection module 200, the fourth detection module 201 and the microcontroller 203.

A2: referring to fig. 4 and 5, first data is obtained, the sensor 3 is connected to an input end of the second detection unit 20, and a voltage value is calculated and output by a linear ratio of voltage through the third detection module 200 or a current value is calculated and output by a linear ratio of current through the fourth detection module 201, where the first data is a current sampling analog signal or a voltage sampling analog signal. In an embodiment of the present invention, the analog input of the sensor is input at 0V to 10V and output by the third detection module 200.

Further, the sensor includes any one or more of a physical quantity sensor or a chemical quantity sensor, in which the physical quantity sensor is made using a characteristic that some physical property of the measured substance is significantly changed, such as a displacement sensor, a velocity sensor, an acceleration sensor, a torque sensor, a vibration sensor included in mechanical automation, and any one or more of a current sensor, a voltage sensor, a resistance sensor, a capacitance sensor, or a magnetic field sensor included in electromagnetism. The chemical quantity sensor is made of a sensitive element capable of converting a component of a chemical substance into an electrical quantity, such as a concentration sensor, a component sensor, a PH sensor in biochemistry, a flow sensor, a pressure sensor, a temperature sensor, a humidity sensor, or a gas sensor in industrial process control, and a radio wave sensor, a microwave sensor in radiation measurement.

Of course, in other embodiments of the present invention, the sensor may include other sensors than the above-described displacement sensor, speed sensor, acceleration sensor, torque sensor, vibration sensor, current sensor, voltage sensor, resistance sensor, capacitance sensor, or magnetic field sensor, as long as it is a physical quantity sensor or a chemical quantity sensor.

A3: referring to fig. 4 and 5, the first data is converted from an analog signal to a digital signal, and the converter 202 obtains the voltage sampling analog signal or the current sampling analog signal, and then performs binary conversion on the voltage sampling analog signal or the current sampling analog signal to a digital signal for output. Specifically, in the embodiment of the present invention, taking the differential pressure sensor as an example, the twelve-digit digital quantity (0-4095) corresponds to 0-10V, the output voltage range of the differential pressure sensor is 0.25-4V, 0.25V ═ 4095/10 × 0.25 ≈ 102.375 ≈ 102, and 4V ═ 4095/10 × 4 ≈ 1638, so that the inner code of the converter 202 is 102-1638 (in this case, it can be known that 0.25V ≈ 102, and 4V 1638 is equal to 0.0024).

A4: referring to fig. 4 and 5, the microcontroller 203 obtains the digital signal and performs a filtering process, where the purpose of the filtering process is to filter out values that do not meet the standard, and leave available values, so as to avoid operation results caused by excessive useless values. Wherein the filtering process comprises the steps of:

a41: and calling a filtering calculation method. Specifically, in the conversion method according to the first embodiment of the present invention, the filter calculation method includes any one of a median average filter method, an arithmetic average filter method, a first-order lag filter method, or a moving average filter method (also referred to as a recursive average filter method).

Of course, in other embodiments of the present invention, the filtering calculation method further includes other filtering calculation methods besides the above-mentioned filtering method, for example, any one of a clipping filtering method (also called program judgment filtering method), a median filtering method, a clipping average filtering method, a weighted recursive average filtering method, and an anti-jitter filtering method.

A42: and acquiring a filter coefficient, acquiring the filter coefficient by the filter calculation method, and setting a sampling frequency according to the filter coefficient (the sampling frequency can be adjusted by 0-30 to set a change value).

The filter coefficient may also be referred to as a refresh rate, the upper limit of the acquisition frequency of the converter 202 is 1K times per second, and the filter coefficient is 2, so that data is refreshed 500 times per second until the data is communicated with the transmitting device 1, and otherwise the data is refreshed 500 times per second. For example, the sensor connected to the converter 2 transmits 100 data items per second, the filter coefficient obtained by the filter calculation method is set to 5, that is, 200 data refreshes per second (1000/5 is 200), and the refresh value of the filter coefficient, that is, 200 data refreshes per second is larger than the transmission amount of 100 data items per second, so that the converter 202 can completely acquire the 100 data items. If the interrogation frequency of the transmitting device 1 is set to 100 times per second, the above-mentioned 100 data can be completely transmitted to the transmitting device 1, and the filter coefficient is set to pre-process part of the data by the transmitting device to filter the field interference glitch.

A43: collecting upper and lower limits, collecting upper voltage limit value and lower voltage limit value of differential pressure sensor, or setting upper current limit value or lower current limit value, taking the sensor in step A3 as an example, collecting the upper voltage limit value of differential pressure sensor as 0V, and the lower voltage limit value as 10V.

In other embodiments of the present invention, the upper and lower acquisition limits may be queried from the back-end device, and the query result is queried and obtained from the back-end device through the fourth communication module 205 by using RS485 protocol or the second communication module 104 by using TCP/IP protocol, and is transmitted back to the microcontroller 203.

A44: second data is obtained, which is the actual value. Specifically, the differential pressure sensor has a pressure range of 3500Pa, and when the received value is 1500 (any one of 102 to 1638), 1500 × 0.0024 becomes 3.6V, and the pressure value becomes (differential pressure sensor pressure range-0.250)/3.75 becomes 3126 Pa. It is thus understood that the actual value of the differential pressure sensor is output at 3.6V, and the pressure detection value is 3126 Pa.

A5: the actual value is obtained and transmitted in an RS485 protocol through the fourth communication module 205, i.e., an RS485 communication module, and similarly, the actual value may also be uploaded in a TCP/IP manner through the fifth communication module 206, i.e., a network communication module.

Compared with the prior art, the conversion device 2 in the first embodiment of the invention does not need to modify the sensor port manually in order to acquire the sensor data, and does not need to debug and upload the acquired data through a communication port which is modified manually, so that the manpower resource and the debugging time are effectively saved, and the conversion device has the advantages of low cost, high integration and small equipment change.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (13)

1. The signal transmission method is characterized by comprising the following steps:

receiving data;

configuring a first function;

supplying power;

distributing power supply;

detecting the power distribution state, and if the power distribution state is abnormal, reporting abnormal data; if normal, normal data is transmitted.

2. The signal transmission method according to claim 1, wherein: the distributing power supply comprises the steps of:

detecting current information or detecting voltage information;

acquiring current information or the voltage information.

3. The signal transmission method according to claim 1, wherein: the signal transmission method also comprises a second function configuration, and the second function configuration comprises the following steps:

configuring an alarm upper limit interval value;

configuring an alarm lower limit interval value;

configuring an upper alarm limit value in the upper alarm limit interval value;

and configuring a lower alarm limit value in the lower alarm limit interval value.

4. The signal transmission method according to claim 3, wherein: the signal transmission method further comprises a third function, and the third function configuration comprises the following steps:

configuring alarm times;

and configuring alarm delay time.

5. The signal transmission method according to claim 4, wherein: the signal transmitting method further comprises a fourth function, and the fourth function configuration comprises the following steps:

configuring a gateway:

configuring a gateway;

configuring a subnet mask;

the DNS is configured.

6. The signal transmission method according to claim 1, wherein: the power supply comprises any one of power supply or POE power supply.

7. The signal transmission method according to claim 1, wherein: the configuration of the first function comprises the steps of:

configuring brand information;

configuring model information;

configuration current data information or configuration voltage information.

8. The signal transmission method according to claim 1, wherein: the signal sending method comprises a fifth function, and the fifth function is configured to check version information.

9. The transmission apparatus for transmitting a signal according to any one of claims 1 to 8, wherein: the transmitting device comprises

A first power source for providing electrical energy;

a first chip connected to the power supply;

a processor in communication with the first chip and configured to distribute power;

the detection board is connected with the processor and used for supplying power to equipment;

the first detection unit is communicated with the processor and used for acquiring the power supply state of the equipment;

the first communication module is provided with one part connected with the first chip, the other part connected with the detection board and the first detection unit respectively, and the first communication module is used for acquiring hardware information of first equipment, transmitting data and feeding back a power supply state;

at least one second communication module connected to the first chip and configured to acquire second device hardware information;

at least one first communication interface connected to the first chip and configured to transmit data.

10. The transmission apparatus as claimed in claim 9, wherein: the sending device further comprises at least one third communication module, one part of the third communication module is communicated with the first chip, the other part of the third communication module is respectively connected with the detection board and the first detection unit, and the third communication module is used for acquiring hardware information of a third device of the device and feeding back a power supply state.

11. The transmission apparatus of claim 10, wherein: the sending device further comprises at least one universal serial bus and at least one multimedia interface, wherein the universal serial bus is used for connecting external equipment, and the multimedia interface is used for connecting multimedia equipment.

12. The transmission apparatus as claimed in claim 11, wherein: the sending device further comprises a shell, the shell is further provided with a display screen and at least one key, and the display screen and the key are respectively connected with the first chip.

13. An information interaction system, characterized by: comprising a transmitting device according to any one of claims 9 to 12 and a converting device connected to the transmitting device.

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