Wearable device and production line for monitoring installation operations

Abstract

The utility model relates to a wearable device for monitoring installation operation, which is characterized in that the wearable device (1) comprises a film type pressure sensor (2) used for measuring pressure applied by a person when the person executes the installation operation; a logic controller (3) for determining whether the measured pressure reaches a pressure threshold and for counting the number of times the pressure reaches the pressure threshold is applied; and the prompting unit (4) is used for prompting a person that the pressure does not reach a pressure threshold value and prompting that the number of times of application does not reach a rated number. In addition, the utility model relates to a production line, in particular to a vehicle production line. According to the utility model, whether the installation operation accords with the installation specification or not can be monitored in real time on the installation site, especially whether the force application size and the force application frequency reach the standard or not, so that the installation accuracy is almost 100%, the omission in installation is effectively avoided, and the manpower and material resource consumption caused by repair is saved while the product quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of wearable device for monitoring installation operation and a production line comprising the wearable device. BACKGROUND

[0002] In today's production line, especially vehicle production line, although a large number of automated production has been achieved by robots and mechanical arms, there is still a need for manual installation by personnel. For example, in the final assembly workshop, multiple fixing clips for fixing the safety curtain need to be pressed into the reserved holes one by one to ensure the tight fixing position of the safety curtain. Such fixing parts are numerous and often play an important role in vehicle quality, such as ensuring the firm fixing position of components, the tight connection between components, preventing loosening, avoiding water and oil leakage, etc.

[0003] Such manual installation has flexibility that cannot be replaced by machines, but it is difficult to completely avoid human factor errors in the face of thousands of fixing parts on each vehicle and thousands of repeated operations by personnel every day. However, once there is an installation error, such as missing fixing parts or improper installation, it may cause adverse effects such as noise interference in the cabin, odor, etc., or safety risks such as line corrosion, short circuit, invalidation of personal protection measures, and obstruction of driving function. In order to avoid installation errors, visual inspection processes are usually implemented before and after installation, especially four-eye inspection processes before and / or after. However, such measures cannot completely eliminate such errors. Moreover, even if errors are found at subsequent workstations, it will cause waste of manpower and resources in disassembly and reinstallation.

[0004] In view of the various disadvantages of the prior art, there is an urgent need for a solution to improve installation quality at the installation site. SUMMARY

[0005] The task of the utility model is to provide a wearable device for monitoring installation operation and a production line to supervise in real time whether the installation operation meets the installation specifications, especially whether the force and the number of times of applying force meet the standards, so as to achieve nearly 100% installation accuracy, effectively avoid installation errors, improve product quality, and greatly save the waste of manpower and resources caused by rework.

[0006] The first aspect of the utility model relates to a wearable device for monitoring installation operation, wherein the wearable device comprises a thin-film pressure sensor for measuring the pressure applied by personnel when performing installation operation, a logic controller for determining whether the measured pressure reaches a pressure threshold and counting the number of times of applying pressure reaching the pressure threshold, and a prompting unit for prompting the personnel that the pressure does not reach the pressure threshold and the number of times of applying pressure does not reach the rated number of times.

[0007] Within the scope of the utility model, the wearable device can be worn by the person performing the installation operation on his limbs, in particular on his hands, such as fingers or palms. Thus, the operation data of performing a specific installation operation, such as pressing, pulling, pulling out, inserting, etc. can be reliably collected in the process of the installation operation, so as to realize the on-site monitoring of the installation operation.

[0008] Specifically, the wearable device comprises a thin film pressure sensor. The pressure sensor is arranged to measure the pressure applied by the person when performing the installation operation. Here, the thin film pressure sensor has the characteristics of lightness, thinness and softness, which will not interfere with the activities and feelings of the person, and ensures the flexibility and convenience of the installation operation. Generally, the thin film pressure sensor is composed of two layers of thin film made of high molecular material, and there are small conductive particles uniformly distributed between the two layers of thin film. Under the condition of external pressure, the upper and lower two layers of thin film will be deformed, so that the originally separated conductive particles will be in contact with each other, and then the resistance value between the two layers of thin film will be changed. By measuring the resistance value, the pressure applied by the person when performing the installation operation can be converted. According to the needs of the installation work, the thin film pressure sensor can be arranged at the palm of one or more fingers and / or the palm of the person.

[0009] In order to supervise whether the installation operation meets the installation specification, the wearable device further comprises a logic controller. The logic controller is arranged to determine whether the measured pressure reaches the pressure threshold value, and on the other hand, to count the number of times of applying pressure reaching the pressure threshold value. Here, the logic controller is connected with the thin film pressure sensor to receive the pressure measured by it. In the logic controller, the pressure is first compared with the pressure threshold value, in particular the pre-set pressure threshold value, to determine whether the pressure applied for installation meets the installation standard, so as to prevent looseness, disconnection, etc. caused by insufficient force. Exemplarily, the fixed part configured as a fixed clip can be provided with a pressure threshold value of 10N, and the pressure threshold value between 5N and 20N can be selected according to the specific fixed part. At the same time, since the actual number of times of applying force during the installation process can correspond to the number of actually installed fixed parts under normal circumstances, the counting of installation operation meeting the pressure threshold value by the logic controller can effectively avoid the omission of fixed parts, and ensure that all installation operations of fixed parts meet the predetermined installation standard. Here, the logic controller is realized by means of the logic module and / or programming means known in the prior art. Exemplarily, the logic controller can include a comparator and a counter configured as a logic module, etc.

[0010] In order to real-time remind the personnel of non-compliant installation, the wearable device further comprises a reminding unit. The reminding unit is configured to remind the personnel that the pressure does not reach the pressure threshold value and that the number of applications does not reach the rated number, so as to timely remind the personnel of insufficient force or insufficient number of force applications at the installation site, so that the personnel can immediately correct the installation operation at the installation station site, prevent the fixing member from being missed and / or not installed in place, and avoid the subsequent repair costs. For example, the reminding unit can remind visually, aurally and / or tactilely. To this end, the reminding unit can include one or more of an indicator light, a display, a buzzer, a speaker and a vibrator.

[0011] Thus, by the wearable device according to the present application, it is possible to supervise in real time at the installation site whether the installation operation complies with the installation specification, in particular whether the force and the number of force applications meet the standards, so as to achieve an installation accuracy of nearly 100%, effectively avoid installation omissions, and greatly save the human and material resources consumed by repair while improving product quality.

[0012] According to an embodiment of the present application, the wearable device can include a power supply unit for supplying power to the wearable device, a data recording unit for recording the pressure curve measured by the pressure sensor, a communication unit for communicating with the production system of the production line, and / or a positioning unit for positioning the wearable device. Here, the power supply unit can be configured as a dry battery or a storage battery to supply low-voltage direct current to the wearable device. The data recording unit can continuously obtain the pressure measured by the pressure sensor and form a pressure curve varying over time. The communication unit can communicate unidirectionally or bidirectionally with the production system for controlling the production line, so that, for example, the monitoring data of the installation operation, such as the reminder of insufficient force or insufficient number of force applications and / or the pressure curve, can be uploaded to the production system for subsequent data tracing and more detailed data analysis. Here, it is also particularly advantageous to store the monitoring data of the installation operation, etc. in association with a single product, such as a single vehicle, in particular the unique VIN code of the vehicle. Additionally or alternatively, the communication unit can receive from the production system information about the production, preferably installation operation requirements, such as the pressure threshold value and / or the rated number, etc. This is particularly flexible in adapting to the installation needs of diversified products, such as multi-model vehicles, in flexible production. In addition, the wearable device can further comprise a positioning unit, which can position the wearable device in real time to obtain real-time position information of the personnel going back and forth between the fixing member storage location and the installation station, so as to monitor the entire process of the installation.

[0013] According to an advantageous embodiment of the application, the communication unit can communicate wirelessly with the production system and / or the positioning unit can be positioned by means of a quantum real-time positioning system. Here, the wireless communication can advantageously ensure that the activities of the personnel are not disturbed by the wiring harness, while the three-dimensional spatial positioning data with a precision of a few millimeters by means of the quantum real-time positioning system (QRTLS) can further monitor whether the personnel accurately install the fixtures into position. Such three-dimensional spatial positioning data can also be recorded and analyzed for further optimization of the installation operation, etc.

[0014] According to an embodiment of the application, the start and end of the counting can be defined by a time window of the first pressure application, a spatial boundary and / or production information. This can make the counting of the number of pressure applications specific to the same product to be installed. Exemplarily, the counting of the number of pressure applications can start with the first measurement of the pressure sensor and end at the end of the time window. The length of the time window can advantageously be specified according to the installation operation to be carried out. For example, for the installation of 7 fixing clips for a single safety curtain, the time window can be preset to 55 seconds or 1 minute. Thus, the pressure application can be counted as 1 from the first pressure application, i.e. when the first fixing clip is installed, then the count value is accumulated as the measured pressure reaches the pressure threshold, and finally the counting ends at the end of the preset time window. At this time, if the count value does not reach the required number, i.e. 7, the personnel are prompted visually, aurally and / or tactilely as described above to indicate that the installation execution number is not up to standard or the number of installed fixing clips does not meet the specification. Alternatively or additionally, the start and end of the counting can be defined by a spatial boundary. Since the personnel usually need to go back and forth between the fixture storage location and the installation station when installing the fixtures, the counting can start when the personnel enter the installation station and end when the personnel step out of the installation station. By such a range definition, the installation operation can also be counted specifically for the same product, and timely reminders of missed installation can also be achieved. Such a spatial boundary can be calibrated using technical means such as electronic fences, RFID tags, etc., or a virtual spatial boundary can be defined in the positioning system in combination with the aforementioned positioning unit. Without limitation, the start and end of the counting can also be specified according to production information. Here, the production information from the production system can well reflect the dynamic position of the product to be installed, such as the vehicle arriving at the installation station and leaving the installation station, whereby the installation operation can also be associated with the production information of the product to be installed. Needless to say, the counter can be reset after the time window expires or steps out of the spatial boundary, so as to count again in the next installation process.

[0015] According to a particularly advantageous embodiment of the utility model, at least the logic controller and the prompting unit can be accommodated in a housing or integrated into an integrated circuit chip, and the housing or the integrated circuit chip can be connected to the pressure sensor in a wired or wireless manner. In order to reduce the labor burden of personnel, the wearable device can be particularly advantageously lightweight and miniaturized. For this purpose, it is preferred that the wearable device, apart from the thin-film pressure sensor, is integrated into an integrated circuit chip and the integrated circuit chip is connected to the pressure sensor in a wireless manner.

[0016] According to an embodiment of the utility model, at least the pressure threshold and the number of times can be set manually and / or according to production information. Here, the pressure threshold, the number of times and / or the length of the time window can be set differently for different installation requirements. For example, a higher pressure threshold can be set for installing hard fixing clips than for installing soft sealing plugs; the number of times can be flexibly set according to the number of fixing parts to be installed; and so on. For this purpose, it can be considered to provide a setting button on the wearable device, to write values into the wearable device, in particular the aforementioned chip, or to transmit a setting instruction via a communication unit.

[0017] According to an embodiment of the utility model, a form-fitting part is provided on the surface of the pressure sensor, the form-fitting part being shaped to match the shape of the fixing part to be installed. In this way, the contact area with the fixing part can be optimized, the pressure is evenly distributed on the human body surface, not only can the discomfort caused by pressure concentration to the human body be avoided, but also the risk of damage to the human skin or tissue caused by excessive local pressure can be reduced, the labor protection effect is achieved and the fatigue feeling of personnel is reduced, and at the same time the service life of the pressure sensor can be improved.

[0018] According to an embodiment of the utility model, the wearable device can be attached to a glove or integrated into a glove, and / or the fixing part to be installed can include one or more of a fixing clip, an insertion type fixing device, a plug seat clip, an oil-proof plug, a filling plug, a sealing plug, and a plug-in plug. It should be noted that the wearable device can be attached to an existing glove as an accessory on the one hand. Exemplarily, the thin-film sensor and the optional form-fitting part can be fastened at the finger end of the glove as a finger sleeve, and the other parts of the wearable device are preferably fastened at the back of the hand of the glove as an integrated circuit chip. On the other hand, the wearable device can also be integrally constructed in the glove during the processing of the glove.

[0019] The second aspect of this utility model relates to a production line, wherein the production line includes at least one wearable device according to this utility model. The production line allows for real-time monitoring of installation operations at various installation sites to ensure compliance with installation specifications, guaranteeing a near 100% installation accuracy rate, effectively avoiding installation oversights, and significantly reducing manpower and material costs associated with rework while improving product quality.

[0020] According to one embodiment of this utility model, the production line can be a vehicle production line; and / or the wearable device can communicate with the production system of the production line. Here, the wearable device can, on the one hand, upload monitoring data of the installation operation, such as prompts for insufficient force or insufficient number of force applications and / or pressure curves, to the production system for subsequent data traceability and more detailed data analysis; on the other hand, it can receive production information and optimized installation operation requirements from the production system, such as pressure thresholds and / or rated number of applications. This is particularly advantageous in flexible manufacturing, allowing for flexible adaptation to diverse products, such as the installation needs of multiple vehicle models.

[0021] It should be noted that the features, functions, effects, and advantages of one aspect of this utility model can also be referred to the above description of other aspects of this utility model. Furthermore, the various aspects described in this utility model can be combined with each other in various ways.

[0022] Other features of this invention are derived from the accompanying drawings and the detailed description. All features and combinations thereof mentioned above in the specification, as well as features and combinations thereof mentioned below in the detailed description and / or shown separately in the drawings, can be used not only in the corresponding combinations given, but also in other combinations, or in their individual states. Attached Figure Description

[0023] Figure 1 This is a block diagram of a wearable device according to an embodiment of the present invention;

[0024] Figure 2 This is a block diagram of a wearable device according to another embodiment of the present invention;

[0025] Figure 3 This is a block diagram of an exemplary logic controller for wearable devices;

[0026] Figure 4 This is a schematic diagram of a wearable device according to one embodiment;

[0027] Figure 5 yes Figure 4 An enlarged schematic diagram of the finger sleeves for wearable devices;

[0028] Figure 6 is a schematic view of a wearable device according to another embodiment. DETAILED DESCRIPTION

[0029] Figure 1 A block diagram of a wearable device 1 according to an embodiment of the present application is schematically shown. As shown, the wearable device 1 comprises a thin-film pressure sensor 2 for measuring the pressure applied by a person when performing an installation operation, a logic controller 3 for determining whether the measured pressure reaches a pressure threshold and for counting the number of times of application of the pressure reaching the pressure threshold, and a prompting unit 4 for prompting the person that the pressure does not reach the pressure threshold and that the number of times of application does not reach a rated number of times. Figure 1

[0030] In the wearable device 1, the thin-film pressure sensor 2, due to its light, thin and soft characteristics, will not interfere with the activities and feelings of the person, ensuring the flexibility and convenience of the installation operation. The pressure applied by the person when performing the installation operation can be measured by the pressure sensor. According to the job requirements of the installation, the thin-film pressure sensor 2 can be arranged at the fingerpulp of one or more fingers and / or the palm of the person, etc. The pressure measured by the pressure sensor 2 can be transmitted to the logic controller 3 through wired or wireless connection. The logic controller 3 first compares the pressure with the pressure threshold to determine whether the applied pressure meets the installation requirements, preventing looseness, disengagement, etc. caused by insufficient force. At the same time, based on the actual number of times of application of force corresponding to the number of fixed parts actually installed during the installation process, the logic controller 3 also counts the number of times of installation to avoid missing installation of the fixed parts. The logic controller 3 is also connected to the prompting unit 4 to issue a prompt to the person when the measured pressure does not reach the pressure threshold and to issue a prompt to the person when the counted number of times of application does not reach the rated number of times. Exemplarily, the prompting unit 4 can prompt visually, aurally and / or tactilely. To this end, the prompting unit 4 can include one or more of an indicator light, a display, a buzzer, a speaker and a vibrator.

[0031] In summary, through the wearable device 1, it can be realized that whether the installation operation meets the installation specification, especially whether the size of the force and the number of times of application of force meet the standard, is supervised in real time at the installation site, so that the installation accuracy can be almost 100%, effectively avoiding installation omissions, improving product quality while greatly saving the human and material resources consumed by rework.

[0032] Figure 2 is a block diagram of a wearable device 1 according to another embodiment of the present application. As can be seen from Figure 2 , in addition to the thin-film pressure sensor 2, the logic controller 3 and the prompting unit 4, Figure 1 ​The wearable device 1 can additionally comprise a power supply unit 5, a data recording unit 6, a communication unit 7 and a positioning unit 8. Herein, the power supply unit 5 can for example be constituted by a dry cell or a battery to supply the wearable device 1 with low voltage direct current, in particular 5 V direct current. For the sake of clarity, the power supply connections of the power supply unit 5 to the components of the wearable device 1 are not shown. The data recording unit 6 can continuously acquire the pressure measured by the pressure sensor 2 and form a pressure curve over time. The communication unit 7 can communicate, in particular wirelessly, with the production system IPSL of the production line, either unidirectionally or bidirectionally. In Figure 2 The production system IPSL is additionally shown in Fig. 1 as a cloud and the communication between the communication unit 7 and the production system IPSL is indicated by a dashed line, preferably wireless. Thereby, for example monitoring data of the installation operation by the logic controller 3, such as a lack of force application or a lack of force application frequency, and / or the pressure curve recorded by the data recording unit 6 can be uploaded to the production system IPSL for later data tracing and more detailed data analysis. Additionally or alternatively, by means of the communication unit 7 information about the production, preferably installation operation requirements, such as pressure thresholds and / or nominal frequencies, can be received from the production system IPSL and the logic controller 3 can be set accordingly, thereby flexibly adapting to the installation needs of a variety of products, such as multi-model vehicles. The wearable device 1 can further comprise a positioning unit 8, which can position the wearable device 1 in real time to acquire real-time position information of the personnel to and from the fixture stock location and the installation station. This way, on the one hand the installation process can be monitored throughout the whole process and on the other hand the personnel can be monitored by the positioning unit 8 to enter and exit a spatial boundary to inform the logic control unit 3 about the start and end of the counting, ensuring that the counting corresponds well to the same product to be installed. In particular, the positioning unit 8 can preferably be positioned by a quantum real-time location system (QRTLS). By a quantum real-time location system three-dimensional spatial positioning data can be provided with an accuracy of a few millimeters, such positioning data can be recorded for data tracing and can be analyzed for further optimization of the installation operation, etc.

[0033] In particular preferably, the start and end of the counting of the number of force applications reaching the pressure threshold can be defined by a time window from the first force application, a spatial boundary and / or production information.

[0034] Figure 3A block diagram of an exemplary logic controller 3 for a wearable device is shown. Here, the exemplary logic controller 3 can comprise an input In connected to the pressure sensor 2 and an output Out connected to the alert unit 4 and optionally to the communication unit 7. The pressure signal measured by the pressure sensor 2 can first be transmitted via the input In to an amplifier AMP, so that a signal amplification can be performed by the amplifier AMP. The amplified signal can then be provided to an analog-to-digital converter ADC to convert the analog signal of the pressure into a digital signal. The converted digital signal can then be provided to a first comparator CMP1 for comparison with a pressure threshold value, so that it can be determined whether the applied pressure meets the installation requirements. In case the pressure does not reach or is less than the pressure threshold value, the first comparator CMP1 can emit an alert signal via the output Out to the alert unit 4 to activate the alert unit 4 to alert the person. Whenever the pressure reaches or is greater than or equal to the pressure threshold value, the first comparator CMP1 can emit a trigger signal to a counter CNT connected downstream. Such a trigger signal can be accumulated by the counter CNT within a time window from the first application of pressure. For this purpose, the counter can obtain a clock signal from a clock CLK. Based on the clock signal, the counting of the counter CNT ends at the end of the time window. The counted number of applications will then be transmitted to a second comparator CMP2 and compared in the second comparator CMP2 with a nominal number. At this point, if the number of applications does not reach or is less than the nominal number, the second comparator CMP2 also emits an alert signal via the output Out to the alert unit 4 to activate the alert unit 4 to alert the person.

[0035] It should be noted that the individual logic modules within the logic controller 3 shown in Figure 3 may also be implemented as programmable logic circuits (PLC), field programmable gate arrays (FPGA) or programmable logic arrays (PLA), etc. Alternatively, the logic controller can be implemented on a microcontroller by means of programming means known in the art.

[0036] Figure 4 A schematic diagram of a wearable device 1 according to an embodiment is shown. In this embodiment, the wearable device 1 can be attached to a glove 9. Here, the wearable device 1 can be divided into two parts: a finger cuff 10 attached to the finger end of the glove 9 and a housing 11 attached to the back of the hand of the glove 9. On the finger cuff 10, a thin-film pressure sensor 2 can be fixed, e.g. glued, on the side facing the finger pad. On the side of the pressure sensor 2 facing away from the finger pad, a form-fit portion 13 can also be fixed, e.g. glued, which will be explained in more detail below. In the housing 11, the other parts of the wearable device 1 can be accommodated: the logic controller 3, the alert unit 4, the optional power supply unit 5, the optional data recording unit 6, the optional communication unit 7 and the optional positioning unit 8. Figure 4It is also shown that the housing 11 and the pressure sensor 2 at the finger cuff can be connected by wires 12. More specifically, the wires 12 transmit the pressure signal from the pressure sensor 2 to the logic control 3 in the housing 11. Here, the housing 11 is arranged at the back of the hand of the glove not only does not hinder the movement of the hand, such as taking, grasping, pressing, etc., but also can better present the visual, auditory and / or tactile form of the prompt to the personnel during the installation operation.

[0037] Figure 5 An enlarged schematic view of the finger cuff 10 of the wearable device 1 in Figure 4 is shown. As can be seen from the figure, the shape fitting part 13 can be fixed on the outer surface of the finger cuff 10, and the pressure sensor 2 not shown in Figure 5 can be arranged between the shape fitting part 13 and the finger cuff 10. Here, a recess 14 is preferably formed on the upper side of the shape fitting part 13, which can match the shape, especially the bottom surface shape, of the fixing member to be installed, thereby optimizing the contact area with the fixing member, and evenly distributing the pressure on the human body surface, not only avoiding the discomfort brought to the human body due to the pressure concentration, but also reducing the risk of damage to the human skin or tissue caused by the local pressure being too high, playing a role in labor protection and reducing the feeling of fatigue of personnel, while also protecting the thin film pressure sensor 2 and improving its service life. Although not shown in Figure 5 , it is also considered that the shape fitting part 13 on the side facing the finger pulp is also matched with the shape of the finger pulp, for example, an arc surface depression corresponding to the shape of the finger pulp is formed, thereby further improving the comfort of the installation process. In addition, in order to firmly attach the finger cuff 10 to the glove 9 or the finger, an elastic ring 15 is also provided at the opening of the finger cuff 10.

[0038] Figure 6 A schematic view of a wearable device according to another embodiment is shown. In this other embodiment, the wearable device 1 can be integrated into the glove 9 or has been built on the glove 9 in the manufacturing process of the glove. Here, the wearable device 1 can also be divided into two parts: the finger cuff 10 fixed on the finger end of the glove 9 and the integrated circuit chip IC fixed at the back of the glove 9. Here, the finger cuff 10 can refer to the relevant description in Figure 4 and 5 . Unlike Figure 4 and 5In this case, the integrated circuit chip IC is preferably wirelessly connected to the pressure sensor 2 to avoid the inconvenience of wires. At least the logic controller 3 and the prompting unit 4 are integrated in the integrated circuit chip IC. Optionally, the power supply unit 5, the data recording unit 6, the communication unit 7 and / or the positioning unit 8 can also be integrated in the integrated circuit chip IC. In this way, the wearable device 1 can be lightened and miniaturized, and the labor burden of personnel can be reduced as much as possible.

[0039] Furthermore, Figure 6 The fixing member 16 to be installed is also exemplarily shown. The fixing member 16 is configured as a fixing clip which should be installed in a reserved hole of a product, in particular a vehicle, during installation. Without being limited to the example shown in the figure, the fixing member 16 can also include one or more of a plug-in fixing device, a plug-in clip, an oil-proof plug, a filling plug, a sealing plug and a plug. Figure 6 As can also be seen in Fig. 1, the shape of the shape-fitting portion 13 matches the shape of the fixing member 16.

[0040] It should also be noted that, Figures 4 to 6 The preferred embodiment of the wearable device 1 according to the present application in combination with the glove 9 is only shown in an exemplary manner, and those skilled in the art can diversify the technical solution of the present application according to the installation needs without departing from the concept of the present application, for example, applying it to shoes, socks, arm sleeves, wrist guards, knee pads and the like. In addition, the wearable device 1 can also be combined with the glove 9 in other ways, for example, providing multiple Figure 5 The finger sleeve shown, and / or providing a thin-film pressure sensor 2 at the palm of the glove, etc.

[0041] The present application is not limited to the embodiments shown, but includes or extends to all technically equivalent means which can fall within the scope of the appended claims. The position descriptions chosen in the specification, such as, for example, upper, lower, left, right, etc., refer directly to the description and the figures shown in the drawings and can be transferred to new positions in terms of meaning when the positions are changed.

[0042] The features disclosed in the present application document can not only be realized individually, but also in any combination in the realization of the embodiments in different design schemes and can be realized.

[0043] The utility model discloses although has disclosed above like the preferred embodiment, but it is not used to limit the utility model, any person skilled in the art can utilize the method and technical content of above disclosure to make possible change and modification to the utility model technical scheme in the spirit and scope of the utility model, therefore, all the contents that do not deviate from the utility model technical scheme, according to the technical essence of the utility model, any simple modification, equivalent change and modification of above embodiment, all belong to the protection scope of the utility model technical scheme.

[0044] List of reference signs

[0045] 1 wearable device

[0046] 2 pressure sensor

[0047] 3 logic controller

[0048] 4 prompting unit

[0049] 5 power supply unit

[0050] 6 data recording unit

[0051] 7 communication unit

[0052] 8 positioning unit

[0053] 9 glove

[0054] 10 finger sleeve

[0055] 11 housing

[0056] 12 wire

[0057] 13 shape fitting part

[0058] 14 recess

[0059] 15 elastic ring

[0060] In input end

[0061] AMP amplifier

[0062] ADC analog-digital converter

[0063] CMP1 first comparator

[0064] CNT counter

[0065] CLK clock

[0066] CMP2 second comparator

[0067] Out output end

[0068] IPSL production system

[0069] IC integrated circuit chip

Claims

1. A wearable device for monitoring an installation operation, characterized by, The wearable device (1) comprises a membrane pressure sensor (2) for measuring a pressure applied by a person while performing an installation operation, a logic controller (3) for determining whether the measured pressure reaches a pressure threshold and for counting the number of times of application of the pressure reaching the pressure threshold, and a prompting unit (4) for prompting the person that the pressure does not reach the pressure threshold and that the number of times of application does not reach a rated number of times.

2. The wearable device of claim 1, wherein, The wearable device (1) comprises a power supply unit (5) for supplying power to the wearable device (1), a data recording unit (6) for recording a pressure curve measured by the pressure sensor (2), a communication unit (7) for communicating with a production system (IPSL) of a production line, and / or a positioning unit (8) for positioning the wearable device (1).

3. The wearable device of claim 2, wherein, The communication unit (7) communicates with the production system (IPSL) wirelessly, and / or the positioning unit (8) is positioned by a quantum real-time positioning system.

4. The wearable device according to claim 2 or 3, characterized in that, The start and end of the counting are defined by a time window from the first pressure application, a spatial boundary, and / or production information.

5. The wearable device according to one of claims 1 to 3, characterized in that, At least the logic controller (3) and the prompting unit (4) are accommodated in a housing (11) or integrated as an integrated circuit chip (IC), and the housing (11) or the integrated circuit chip (IC) is connected to the pressure sensor (2) wiredly or wirelessly.

6. The wearable device according to one of claims 1 to 3, characterized in that At least the pressure threshold and the rated number of times can be set manually and / or according to production information.

7. The wearable device according to one of claims 1 to 3, characterized in that, A form-fit piece (13) is arranged on a surface of the pressure sensor (2), the form-fit piece having a shape matching a shape of a fixing piece (16) to be installed.

8. The wearable device of claim 7, wherein, The wearable device (1) can be attached to a glove (9) or can be integrated into a glove (9), and / or the fixing piece (16) to be installed comprises one or more of a fixing clip, a plug-in fixture, a seat clip, an oil-proof plug, a filling plug, a sealing plug, and a plug.

9. A production line, characterized in that, The production line comprises at least one wearable device according to one of claims 1 to 8.

10. The production line according to claim 9, characterized in that The production line is a vehicle production line; and / or the wearable device communicates with a production system (IPSL) of the production line. The production line is a vehicle production line; and / or the wearable device communicates with a production system (IPSL) of the production line.

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