JP2009163495A - Apparatus for inspecting operator grounding mechanism at work table - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for inspecting whether or not an operator on a production line is wearing an electrostatic wrist strap or taking similar grounding measures. <P>SOLUTION: One of the features of an inspection device includes inspecting whether or not an operator is at a work table by using radio energy transmission or sensor mechanism (for example, infrared ray). When the operator is detected, this inspection device inspects whether or not the operator has a leakage circuit with proper resistance via a wrist strap, and when the resistance value of the leakage circuit is not normal (for example, the operator is not wearing the wrist strap, or the wrist strap is not properly grounded), the inspection device generates an alarm signal. The other characteristic includes connecting one or more inspection devices to a central monitor control place by a control circuit to control the monitoring of whether or not the alarm signal is remotely generated from a place isolated from the central monitoring control place, and to control the setting of the switch of each inspection device. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to ground inspection, and more particularly, to an inspection apparatus that controls whether an antistatic wrist wrap or similar ground is fitted to a worker on a production line and avoids a limit hazard.

How to avoid important manufacturing process failures or loss of valuable raw materials due to electrostatic breakdown remains an important issue for the high-tech semiconductor and electronics industries. Good grounding is an important way to avoid electrostatic hazards, but with the development of science and technology, ensuring a good installation during the production process remains a difficult task.

  A typical production work environment typically includes a plurality of production lines, and one production line always includes a plurality of worktables that perform different production or assembly steps. To avoid electrostatic damage to electronic components, equipment, manufacturing equipment, or semi-finished products that are in production, workers typically wear anti-static wrist straps, and on the ground. Therefore, it is required to always lay a floor mat for preventing restriction and to lay an antistatic table mat or the like on the table surface of the work table. As shown in FIG. 1, the floor mat 10, the table mat 20, and the wrist strap 30 of the work table are usually all connected to one common point ground 40 of the work table through a ground line. The common point installation 40 is usually a metal piece or metal wire fixed at an appropriate position on one workbench, and the outer surface is covered and protected by a plastic outer shell (in the figure, common grounding with the wrist strap 30). 40 indicates a ground wire). The common point ground 40 of each work station of one production line is usually used in series or parallel, and finally gathered and connected to factory equipment installation or earth ground (for simplicity, this part is shown in the figure) Not shown). With these installations, static electricity that adheres to or accumulates on the body of a worker who sits in front of a table or workbench may cause wrist straps, table mats or floor mats, common grounding of worktables, and grounding of building equipment. , Or other independent earth ground to leak to earth, eliminating the possibility of electrostatic hazards.

  The grounding structure is basically efficient and durable. However, in actual application, it has the following defects. First, these grounding structures lack the ability to measure whether a wrist strap, table mat, or floor map is securely connected to a common ground. For example, the wrist strap, the table mat, or the floor mat and the ground wire of the common ground pipe may be corroded or broken, or the wrist strip and the common ground may be disconnected depending on the operation relationship. In addition, the wrist strap ground wire can be connected to the connector in one of the common and common ground types that can be plugged into and unplugged from the plug, so that the worker unplugs when leaving the work table (for example, toilet or meal) Alternatively, the entire wrist strap can be removed, placed on the work table, returned to the work table, and then plugged again or the wrist wrap can be fitted. The most common situation is that workers forget to plug back in or put on wrist straps, and at times, know that they have to fit, work bothersome and without fitting Sometimes.

Therefore, in a situation where static electricity that adheres to the worker's body or accumulates during work cannot be erased via the wrist strap, the assembled product, finished product or semi-finished product, and valuable electronic equipment are damaged. there's a possibility that.
Japanese Patent Laid-Open No. 11-259827

The present invention provides an inspection apparatus for whether an operator on a production line is wearing an electrostatic wrist strap or performing similar grounding measures, and an object thereof is to solve the problems of the current method. .

  One of the features of this inspection apparatus is to inspect whether the worker is in front of the work table by using wireless energy transmission and sensor mechanism (for example, infrared rays). In a situation where it is confirmed that there is a worker, the inspection apparatus simultaneously checks whether the worker has a leakage circuit having an appropriate resistance via the wrist strap. The resistance value of the leakage circuit is not normal (for example, the wrist strap is not worn) or the wrist strap is not properly grounded (for example, the wrist strap is already connected to the common point ground, but is not connected to the ground line) If the 1MΩ resistor is broken or shorted), an alarm signal is generated.

  Another feature of this inspection device is that it adopts a moving measurement method for human body with temperature, improves the accuracy of inspecting the worker, and that the worker already has an object such as a chair in front of the work table. It is to prevent misrecognition.

  Still another feature of the inspection apparatus is that at least one of the table mat and the floor mat is grounded in parallel with the inspection for the wrist strap, and at the same time, the table mat or the floor mat, or both are leakage circuits of appropriate resistance. It is inspecting whether or not it is configured.

  A further feature of the present inspection apparatus is whether at least one of the table mat and the floor mat is in series with the inspection for the wrist strap with a ground wire, and at the same time, some of the above jointly constitute a leakage circuit of an appropriate resistance. Is to inspect.

  Another feature of the inspection apparatus is that one or more inspection apparatuses are connected to a central monitoring control station by a control circuit, and an alarm signal is generated remotely from a location remote from the central monitoring control station. It is possible to monitor and control whether or not the switches and settings of each inspection apparatus can be controlled.

The present invention provides an inspection device for whether an operator on a production line is wearing an electrostatic wrist strap or performing similar grounding measures, and solves the problems of the current method.

  FIG. 2 is an explanatory diagram of electrical connection lines of the inspection apparatus according to the first embodiment of the present invention. As shown in the figure, the inspection apparatus 100 of this embodiment is an independent apparatus having a single microprocessor circuit 200 as a core. There are three external electrical connection lines. One is a power cable or a connection between an external power supply (for example, a converter for a laptop computer) and a city power supply. In addition to the DC power required by the processor circuit 200, it is more important to obtain the ground 60 of the city power source. The other is connected via the interface 120 to a factory equipment ground or earth ground 50 (hereinafter collectively referred to as earth ground), which can be achieved via a common ground 40 on the workbench, Or, as shown in the figure, it connects itself to earth ground. The third is connected to the two conductors 31 and 32 in the ground strap of the wrist strap via the interface 110. One end of the conducting wire 31 is connected to the earth ground 50 in the inspection apparatus 100, and one end of the conducting wire 32 is connected to the city power supply installation 60 via the microprocessor circuit 200. As shown in FIG. 3, the other ends of the conducting wires 31 and 32 are connected to two pieces of conductive pieces 33 included in the wrist strap 30. The wrist strap 30 usually has an insulating outer shell, and the conductive piece 33 is located inside the insulating outer shell and contacts the skin 70 of the hand. Accordingly, when the worker is wearing the wrist strap 30 normally, as shown by the dotted line in FIG. 2, the worker uses the city power ground 60, the ground, the ground ground 50, the lead 31, the worker's skin 70, and the lead 32. Further, a leakage circuit is configured via the microprocessor circuit 200. One of the functions of the microprocessor 200 is to check whether the leakage circuit has an appropriate resistance (more precisely, the microprocessor circuit 200 is connected to the second conductor 32 and the city power ground). See resistance appearing between 60).

  It should be noted that the interface 110 between the grounding wire of the wrist strap 30 and the inspection device 100 can be dynamically inserted and removed. For example, one end of the grounding wire is a plug and the inspection device 100 corresponds to an outlet. It is. In another embodiment, the interface 110 between the grounding wire of the wrist strap 30 and the inspection apparatus 100 can adopt a fixed connection method. Similarly, the connection between the interface 120 and the earth ground 50 can be a fixed connection or can be dynamically inserted and removed.

  In the above embodiment, only the wrist strap 30 is inspected, but the floor mat 10 and the table mat 20 in FIG. 1 are also connected to the common point ground 40. FIG. 4 is an explanatory diagram of electrical connection lines of the inspection apparatus according to the second embodiment of the present invention. In this embodiment, the inspection apparatus 100 plays the role of a common point ground 40 at the same time. As shown in the figure (for the sake of simplicity, the floor mat 10 is omitted), the conductors 21 and 22 of the ground wire of the table mat 20 are connected in series between the earth ground 50 and the wrist strap 30 via the interface 130. (The interface 130 can be fixedly connected or dynamically inserted and removed) and constitutes a relatively large leakage circuit (dotted line in the figure). Similarly, the floor mat 10 (the ground wire similarly has two conductors) can also be delivered and inspected in a series manner so that it can be easily guessed. Therefore, this inspection apparatus can perform inspection by delivering at least one of the floor mat 10 and the table mat 20 to the same leakage circuit in addition to inspecting the wrist strap 30.

  The microprocessor 200 determines whether or not a problem has occurred in the leakage circuit by checking the resistance of the leakage circuit. However, in the system in which the wrist strap, the table mat, and the floor mat are connected in series, the occurrence of the problem is caused by the wrist wrap and the table mat. Cannot determine which is the floor mat. As shown in FIG. 5, if the wrist strap 30 and the table mat 20 are connected in parallel between the earth ground 50 and the microprocessor circuit 200, the microprocessor circuit 200 inspects the wrist strap 30 and the table mat 20 respectively. It can be carried out. Similarly, it can be easily estimated that the floor mat 10 can be delivered and inspected, and the description is omitted here. It should be noted that the microprocessor circuit 200 that employs the parallel system test is different from the microprocessor circuit 200 that employs the serial system test. The inspection microprocessor circuit 200 can be easily estimated. In some embodiments, for wrist straps, table mats, floor mats, or other test objects, some may be inspected in a series, some in parallel. One or more wrist straps, table mats, and floor mats can also be inspected. Therefore, for the sake of simplicity, details of the inspection apparatus 100 will be described below in consideration of one wrist strap 30 in the serial microprocessor circuit 200.

  FIG. 6 is a functional block diagram of the microprocessor circuit of the inspection apparatus according to the embodiment of the present invention. It should be noted that the power supply unit 500 of the inspection apparatus 100 applies voltage conversion of a city power supply or an external power supply to the microprocessor circuit 200 in addition to electrically connecting the city power supply ground 60 to the microprocessor circuit 200. It can be a DC voltage (ie, Vin in the figure).

  The microprocessor circuit 200 includes one comparison enlargement unit 210, and is composed of one or more operational amplifiers. The variable resistors R1 and R2 connected in series in the figure are a part of the comparative enlargement unit 210, but are described outside for the sake of simplicity. The installation of the variable resistors R1 and R2 makes a comparison as to whether or not the resistance value of the leakage circuit introduced from the lead wire 32 to the operational amplifier in the comparison expansion unit 210 is interposed between R2 and R1. In other words, it is compared whether or not the operation of the comparison enlargement unit 210 is interposed between the first resistance value R2 having a relatively small resistance value of the leakage circuit and the second resistance value R1 having a relatively large value. It is determined whether or not the wrist strap 30 is fitted. When the operator does not fit the wrist strap 30 or the installation line of the wrist strap 30 is corroded or broken, the electric resistance of the leakage circuit becomes larger than the second resistance value. Alternatively, the electrical resistance value of the leakage circuit is smaller than the first resistance value in a situation where the worker is wearing the wrist strap 30 and both the wrist strap 30 and the installation line thereof are normal. Accordingly, when the electric resistance value of the leakage circuit is larger than the second resistance value or smaller than the first resistance value, the comparison enlargement unit 210 triggers the operation of the processor unit 220. The present invention also includes embodiments that include only the variable resistor R1 (that is, when the variable resistor R2 in the figure is omitted). In these embodiments, is the resistance value of the leakage circuit smaller than the resistance value of the variable resistor R1? Check for no. There is an embodiment that adopts a fixed resistance value, but the advantage of the variable resistor is the characteristics of the leakage circuit (for example, the leakage circuit that includes the wrist strap, or the leakage circuit that includes the wrist strap, table mat, etc. in series) It can be adjusted dynamically. Adjustment of the variable resistors R1 and R2 can be performed via an adjustment lever of the outer shell of the inspection apparatus, and can be performed on the outer shell of the inspection apparatus via a control panel, which will be described in detail later.

  The processor unit 220 is the core of this inspection apparatus. Basically, it is composed of a single chip, and the single chip incorporates a program memory for storing control firmware, a cache memory, an oscillator and clock circuit, an input / output line, and the like. Single chip designs are well known to those skilled in the art and will not be described in detail here.

  After being inspired by the comparison enlargement unit 210, the processor unit 220 drives the alarm unit 230 to send out an alarm signal to alert the worker to put on the wrist strap or to perform processing by the manager. The alarm unit 230 includes one or more lamp signals utilizing, for example, light emitting diodes (LEDs). When lit or flashing, this lamp signal provides a visual warning. The alarm unit 230 can give an audible warning by a circuit such as a speaker or a buzzer. The visual and audible warnings can be performed selectively or in combination. The alarm unit 230 further includes a connector circuit and can trigger an external alarm device or the like. After the situation that triggered the processor unit 220 disappears, the processor unit 220 drives the alarm unit 230 to stop the transmission of the warning signal. Alternatively, a control lever or a control panel may be provided on the outer shell of the inspection apparatus, and the alarm signal may be opened and closed by main movement.

  The operation of the personnel inspection unit 230 inspects whether the worker is in front of the workbench (ie, in front of the inspection apparatus), and transmits a personnel appearance signal when the inspection result (eg, when a personnel appears or exists). To the immediate processor unit 220. Thus, when the microprocessor unit 220 determines that the worker is in front of the workbench (for example, when the worker is not receiving a further signal after receiving the worker appearance signal), the microprocessor circuit 220 It is determined whether or not to send an alarm based on the measurement result of the resistance value. Therefore, when the worker leaves the work table and removes the wrist strap 30 or separates the installation line of the wrist strap 30 from the plug and play interface 110 (see FIGS. 2, 3, and 4) of the present inspection apparatus, Even if the processor unit 220 finds an abnormality in the resistance value of the leakage circuit (because the path is broken), since the microprocessor unit 220 receives a signal from which personnel have left, the microprocessor unit 220 instructs the alarm unit 230 to send an alarm signal. There is no transmission. However, when the personnel inspection unit 240 is inspecting the appearance of personnel, the microprocessor unit 220 drives the alarm unit 230 based on the result output by the comparison enlargement unit 210, and the worker who has returned to the office is informed of the wrist strap 30. It is avoided to forget to put on or to forget to insert the installation line of the wrist strap 30 back into the plug and play interface 110. It should be noted that the personnel inspection unit 240 provides inspection results for the presence or absence of personnel, and the determination is made by the firmware of the microprocessor unit 220. In order to avoid misjudgment and give the operator a localized time, the firmware of the microprocessor unit 220 usually stops driving the alarm unit 230 based on the result output by the comparison enlargement unit 210 when the person leaves. To do. However, after the worker appears again, for a certain period of time (for example, 5 seconds), the driving of the alarm unit 230 is recovered based on the result output by the comparison enlargement unit 210.

There are two types of methods in which the personnel inspection unit 240 inspects whether or not there are personnel, an active type and a passive type. FIG. 7 is an explanatory diagram that employs an active personnel inspection unit. As shown in the figure, the active personnel inspection unit 240 has a wireless energy source and is suitable for a local range (for example, a position where an employee is present) such as an infrared LED 241 or a radar shown in the figure. It is a unit that emits electromagnetic waves or ultrasonic waves of bandwidth. The active personnel inspection unit 240 further includes a sensor for detecting energy reflected from the worker's body, for example, an infrared receiver 242 shown in the figure. In daily life, this kind of active inspection technology has already been applied a lot, and this source, sensor unit and related circuits have already been disclosed a lot, and adopt what follows the manual or as a module Can do. For example, active infrared inspection is often found in bathing equipment for automatic watering, and similar applications are found in car back radar when ultrasound is employed. As shown, one output of the microprocessor unit 220 controls the electronic switch 243 to open or close the lighting of the infrared LED 241. The inspection result of the infrared receiver 242 is transmitted to one input of the processor unit.

  In contrast to the present invention, the active inspection has a certain effect, but a normal worker's chair is installed in front of the work table, and the personnel inspection unit 240 is a person in front of the work table. It is difficult to distinguish whether the chair is after the worker leaves. The passive inspection method has a relatively high determination accuracy in the present invention. The most common passive test is the passive infrared (PIR) sensor. Passive infrared sensors inspect the movement of objects having a temperature within a certain range. This is a common member in the field of safety monitoring and control, but it cannot distinguish between animal movement and human movement, and may make a misjudgment. In recent years, the application has gradually become narrower. The production environment to which the present invention is applied is appropriate because it is sufficient to distinguish between a human body having a temperature and a chair having a low temperature. As shown in FIG. 8, the passive personnel inspection unit 240 needs only one passive infrared sensor 244 and is simpler.

  Another type of passive inspection method employs a photographic lens in the personnel inspection unit 240, and makes a determination based on a moving inspection method on an image acquired by the photographic lens in the personnel inspection unit 240. This type of system is already prevalent in the field of safety monitoring and control as well. Although this type of passive inspection achieves the highest accuracy by appropriate calculation method, the personnel inspection unit 240 is more complicated than FIGS. 7 and 8, and the cost of the inspection apparatus 100 is also increased. .

  FIG. 9 is a functional block diagram of the microprocessor circuit of the inspection apparatus according to another embodiment of the present invention. In this embodiment, the microprocessor circuit 200 includes a separate control interface unit 250. The control interface unit 250 provides a human interface to the inspection apparatus 100 of the present invention, is electrically connected to one or more buttons (not shown) on the outer shell of the inspection apparatus 100, and includes several inputs of the processor unit 220. Connected to the output (i.e., bidirectional signal exchange), and some operational parameters of the processor unit 220 (e.g., how long after the worker appears, the result that the comparison magnification unit 210 outputs) On the basis of whether the alarm unit 230 is to be driven), an inspection function switch, an alarm function switch, and the like. The control interface unit 250 may further include one small liquid crystal panel (not shown), and is used to display the current state of the inspection apparatus 100 or to provide inspection parameters and settings. The processor unit 220 can also display a warning signal on the panel.

  The normal production environment includes a plurality of production lines, each production line further includes a plurality of work tables, and it is necessary to set the inspection apparatus 100 of each work table one by one, which consumes considerable manpower and time. Accordingly, as shown in FIG. 10, in another embodiment of the microprocessor circuit 200 of the present invention, the microprocessor circuit 200 adds one additional network interface unit 260. The network interface unit is electrically connected to one network interface 140 of the inspection apparatus, and performs bidirectional data exchange with the processor unit 220 via the input and output of the processor unit 220. The network interface 140 provides a connection function with one external network 300. The network 300 can be a wired or wireless area network that conforms to standards such as 802, 11x, or a control network that conforms to standards such as RS-485, Lonworks. Depending on what network is employed, the network interface 140 provides a corresponding specific connection (for example, an RJ45 interface that connects to a wired area network). As shown in FIG. 11, the plurality of work table main inspection apparatuses 100 can be centrally monitored and controlled by a monitoring control main machine 400 via a network 300. Therefore, when the electrical resistance value of the leakage circuit is not normal, the processor unit 220 activates the alarm unit 230 at the same time through the network interface unit 260 and the network 300 in addition to driving the alarm unit 230 and issuing an alarm signal. Information can be transmitted to the monitoring control main unit 400 automatically, or the monitoring control main unit 400 periodically communicates with the processor unit 220 of each inspection apparatus 100 in a polling manner, and the state of each inspection apparatus 100 (for example, an alarm) It is also possible to acquire whether or not a signal is generated. At the same time, the supervisory control main machine 400 can set parameters, open / close an alarm function, etc. for a specific inspection apparatus 100 or all inspection apparatuses 100 via the network 300.

  Finally, what should be presented in particular is that the above is the main inspection object of the inspection device whether or not the wrist strap is fitted, and the wrist wrap is the most commonly used antistatic mechanism of employees. The inspection apparatus is not limited to the wrist strap as long as the two lead wires are brought into contact with the skin of the human body and the two lead wires prevent static electricity from leaking static electricity.

In the present invention, the preferred embodiments have been disclosed as described above, but these are not intended to limit the present invention in any way, and anyone who is familiar with the technology can make an equivalent scope without departing from the spirit and scope of the present invention. Of course, various fluctuations and hydration colors can be added.

It is a figure which shows the conventional earthing | grounding structure of a work table. It is explanatory drawing of the electrical connection cable of the test | inspection apparatus of 1st Example of this invention. It is explanatory drawing of the wrist strap matched with the test | inspection apparatus of this invention. It is explanatory drawing of the electrical connection cable of the test | inspection apparatus of 2nd Example of this invention. It is explanatory drawing of the electrical connection cable of the test | inspection apparatus of 3rd Example of this invention. It is a functional block diagram of the microprocessor circuit of the test | inspection apparatus of 1st Example of this invention. It is explanatory drawing of the active type personnel inspection unit of the inspection apparatus of this invention. It is explanatory drawing of the passive type personnel inspection unit of the inspection apparatus of this invention. It is a functional block diagram of the microprocessor circuit of the test | inspection apparatus of another Example of this invention. It is a functional block diagram of the microprocessor circuit of the test | inspection apparatus of another Example of this invention. It is explanatory drawing which carries out centralized monitoring control by the monitoring control main machine of the inspection apparatus shown in FIG.

Explanation of symbols

10 Floor mat 20 Table mat 21, 22 Conductor 30 Wrist wrap 31, 32 Conductor 33 Metal piece 40 Common point ground 50 Ground ground 60 Main ground 70 Skin 100 Inspection device 110, 120, 130 Interface 140 Network interface 200 Microprocessor circuit 210 Comparison Expansion unit 220 Processor unit 230 Alarm unit 240 Personnel inspection unit 241 Infrared LED
242 Infrared receiver 243 Electronic switch 244 Passive infrared sensor 250 Control interface unit 260 Network interface unit 300 Network 400 Monitor and control main machine 500 Power supply unit Vin Voltage R1, R2 Variable resistance

Claims (10)

A wireless inspection device for a workbench worker grounding mechanism, wherein the grounding mechanism includes at least one first conductor and a second conductor, and a first end of the first and second conductors is defined by the worker. When the grounding mechanism is fitted, each of the workers touches two skins, and the wireless inspection device is at least
A power supply unit connected to a city power supply, removing a city power supply ground from the city power supply, converting the yearly power supply to an appropriate voltage, and electrically connecting the DC voltage and the city power supply ground to other units of the wireless inspection device When,
A first interface connected to the second ends of the first and second conducting wires;
A second interface connected to earth ground and electrically connected to the second end of the first conductor;
A resistance value connected between the second end of the second conductor and the first interface, including at least one first resistor, and between the second conductor and the city power ground; and A comparison expansion unit that compares one resistance value and generates an abnormal signal when the resistance value is greater than the first resistance value;
A personnel inspection unit that has a wireless energy sensor mechanism, and inspects the appearance or presence of the worker within a limited range and the departure or absence of the worker, and generates a trigger signal, respectively;
Receiving the trigger signal generated by the comparison enlargement unit and the personnel inspection unit, receiving the trigger signal of the worker appearance or presence generated by the personnel inspection unit, and receiving the trigger signal of the worker generated by the personnel inspection unit; A processor unit that generates an activation signal based on the abnormal signal generated by the comparative magnification unit within an appropriate time that has not yet received the trigger signal of withdrawal or absence;
An alarm unit for generating at least one audible and visual alarm signal after obtaining the activation signal of the processor unit;
Including wireless inspection equipment.   The grounding mechanism is a wrist strap, and the first ends of the first and second conductors are connected to two conductive pieces of the wrist strap, respectively, and the two conductive pieces are fitted by the operator to the wrist strap. 2. The wireless inspection device according to claim 1, wherein each of the workers contacts the skin of the arm of two points of the worker. The wireless inspection device according to claim 1, further comprising one third interface, wherein the third interface is connected to the floor mat and the third conductor and the fourth conductor of one of the table mats.   The wireless inspection device according to claim 3, wherein the second end of the first conductor is connected to the fourth conductor, and the third conductor is connected to the earth ground of the second interface. The comparative expansion unit further includes a second resistor, the second resistance value is smaller than the first resistance value, and the resistance value that the comparative expansion unit takes from between the second conductor and the city power supply ground and the second resistance value. The wireless inspection apparatus according to claim 1, wherein two resistance values are compared, and when the resistance value is smaller than the second resistance value, the comparison enlargement unit generates the trigger signal.   2. The wireless of claim 1, wherein the wireless energy sensor mechanism includes at least one energy transmitter and an energy sensor, the energy transmitter transmits energy to the localized area, and the energy sensor reflects and returns energy. Inspection device. The wireless inspection device of claim 1, wherein the wireless energy sensor mechanism includes at least one passive infrared sensor. And a control interface unit serving as a human interface of the wireless inspection apparatus, the control interface unit having a bidirectional signal exchange with the processor unit, and providing input and output functions to the processor unit. The wireless inspection device according to claim 1 to be provided. The wireless test according to claim 1, further comprising a network interface, wherein the network interface has a bidirectional signal exchange with the processor unit, and wherein the wireless test device is connected to the network via the network interface. apparatus. The wireless inspection device according to claim 9, wherein the processor unit transmits the activation signal to the monitoring control main unit connected to the network via the network interface unit and the network.

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