JP5659796B2 - Infrared communication device and field device - Google Patents

Description

  The present invention relates to an infrared communication device and a field device.

  A field device is a generic term for sensor devices such as flow meters and temperature sensors, valve devices such as flow control valves and on-off valves, actuator devices such as fans and motors, and other devices installed in plants and factories. Most conventional field devices transmit and receive various signals such as measurement signals and control signals via a wired communication bus laid in a plant or the like, but in recent years, such as ISA100.11a and WirelessHART. Field devices (wireless field devices) that transmit and receive various signals wirelessly in accordance with industrial wireless communication standards have been realized.

  The wireless communication system compliant with the industrial wireless communication standard is roughly composed of the wireless field device, the wireless network management device, and the host management device. The wireless network management device is a device that performs overall management of wireless field devices connected to the wireless network while performing wireless communication with the wireless field devices. The host management device is operated by the administrator of the wireless communication system and communicates individually with the field wireless device in accordance with the instructions of the administrator to realize various settings, adjustments, failure diagnosis, etc. for the field wireless device. It is a device to do.

  Here, in order to allow the above-mentioned wireless field devices to enter the wireless network, device information acquisition work called “provisioning” is performed on the wireless field device on the entering side, and the wireless device on the entering side It is necessary to register the device information for specifying the wireless field device that has been provisioned to the network management device. Provisioning for field wireless devices is performed by an operator using an infrared communication device capable of infrared communication with the field wireless devices, for example, and registration work for the wireless network management device is performed by an administrator using a host management device. Is called.

  Wireless field devices in which device information matching device information registered in the wireless network management device is set are allowed to enter the wireless network by the wireless network management device, and other field information devices in which other device information is set Is refused to enter the wireless network by the wireless network management device. For provisioning of field devices, refer to the following Non-Patent Document 1, for example.

Shuji Yamamoto and two others, “Field wireless solutions based on ISA100.11a to revolutionize instrumentation”, Yokogawa Technical Report, Vol. 53, no. 2,2010

  By the way, when performing the above-mentioned provisioning, the worker faces the infrared light receiving / emitting part provided in the infrared communication device to the infrared light receiving / emitting part provided in the wireless field device, and performs infrared communication. Therefore, it is necessary to bring the infrared communication device close to the wireless field device up to a distance that can be. However, since field wireless devices are installed in plants, some are installed in places where workers can easily work, while others are installed in places where it is difficult to work, making provisioning difficult. The situation may arise.

  For example, when the wireless field device is installed in a dim place, it is difficult for an operator to specify the position of the light emitting and receiving unit provided in the wireless field device, and the orientation of the infrared communication device can be determined. An impossible situation can arise. In such a situation, an operator often performs an operation of searching for a direction in which infrared communication can be performed by shaking the infrared communication device up, down, left and right. However, even if infrared communication is started by such an operation, since the direction of the infrared communication device is immediately changed, there is a high possibility that the infrared communication will be interrupted, and if the infrared communication fails, the above operation needs to be repeated. Thus, when the wireless field device is installed in a place where it is difficult for an operator to work, there is a problem that provisioning takes time.

  Further, if the light emitting / receiving unit provided in the wireless field device is large (for example, if it is about several centimeters square), it is considered that the probability that the infrared communication fails will be low even if the direction of the infrared communication device is slightly deviated. However, in a small wireless field device, the light emitting / receiving section is inevitably small (for example, 1 centimeter square or less), and therefore the probability that infrared communication will fail even if the direction of the infrared communication device is slightly shifted is high. It is considered to be. As described above, the small wireless field device has a problem that it is difficult to determine the direction of the infrared communication device and the cost is reduced.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide an infrared communication device and a field device capable of improving workability of an operator and completing work related to infrared communication in a short time. To do.

In order to solve the above-described problems, an infrared communication device of the present invention emits infrared light directed to an external device in the infrared communication device (2b, 5, 6, 7) that performs infrared communication with an external device. And an infrared light emitting part (21, 41) for emitting the laser light in a direction in which the infrared light is emitted.
According to the present invention, infrared light is emitted from the infrared light emitting portion toward an external device, and laser light is emitted in the direction in which the infrared light is emitted from the laser light emitting portion.
In addition, the infrared communication device of the present invention includes a switch unit (24, 31) for switching whether to emit laser light from the laser light emitting unit.
In addition, the infrared communication device of the present invention includes an interface unit (23) to which a control signal for controlling whether or not to emit infrared light from the infrared light emitting unit is input.
The infrared communication device according to the present invention is based on the laser light receiving unit (33) that receives the reflected light of the laser light emitted from the laser light emitting unit, and the reflected light received by the laser light receiving unit. A control unit (34) for calculating a distance to the external device, and a control for controlling whether or not to emit infrared light from the infrared light emitting unit according to the distance calculated by the calculation unit And a part (35).
In addition, the infrared communication device of the present invention includes an infrared light receiving unit (21, 41) that receives infrared light from the external device.
The field device of the present invention is a field device (1a, 1b, 1c) capable of infrared communication, and a light receiving unit (12) that receives infrared light emitted from any of the infrared communication devices described above, Provided in at least a part of the periphery of the light receiving section, emits fluorescence by irradiation of laser light emitted from the infrared communication device, or directs laser light emitted from the infrared communication device toward the infrared communication device It is characterized by comprising an instruction part (13, 14) for reflection.

  According to the present invention, the infrared communication device emits infrared light directed to an external device and emits laser light in the direction of infrared light emission, and the field device communicates with the infrared communication device. While performing infrared communication, it is the structure which fluoresces by the laser beam inject | emitted from an infrared communication apparatus, or reflects a laser beam. For this reason, the operator can determine the orientation of the infrared communication device by using the fluorescence or reflected light emitted by the laser light emitted from the infrared communication device as a mark, thereby shortening the work related to the infrared communication. There is an effect that it can be completed in time.

It is a figure which shows the principal part structure of the communication system with which the infrared communication apparatus and field device by 1st Embodiment of this invention are used. It is a front view which shows the display part of the field apparatus by 1st Embodiment of this invention. It is a figure which shows the external appearance of the infrared communication apparatus by 1st Embodiment of this invention. It is a front view of the field device by a 2nd embodiment of the present invention. It is a block diagram which shows the principal part structure of the infrared communication apparatus by 2nd Embodiment of this invention. It is a figure which shows the optical path of the laser beam in 2nd Embodiment of this invention. It is a figure which shows the principal part structure of the communication system with which the infrared communication apparatus and field device by 3rd Embodiment of this invention are used. It is the perspective view which notched a part of infrared communication device by a 4th embodiment of the present invention.

  Hereinafter, an infrared communication device and a field device according to an embodiment of the present invention will be described in detail with reference to the drawings.

[First Embodiment]
FIG. 1 is a diagram showing a main configuration of a communication system in which an infrared communication device and a field device according to a first embodiment of the present invention are used. As shown in FIG. 1, the communication system CS1 of the present embodiment includes wireless field devices 1a and 1b (field devices), a provisioning device 2, a wireless network management device 3, and a host management device 4, and includes wireless field devices 1a and 1b. Communication is performed between 1b and the wireless network management device 3 or between the field wireless devices 1a and 1b and the upper management device 4 via the wireless network management device 3. In FIG. 1, two field wireless devices 1a and 1b are shown, but the number of field wireless devices is arbitrary.

  The wireless field devices 1a and 1b are, for example, sensor devices such as flow meters and temperature sensors, valve devices such as flow control valves and on-off valves, actuator devices such as fans and motors, and other devices installed in plants and factories. The wireless communication conforming to ISA100.11a which is a wireless communication standard for industrial automation is performed. The operations of the wireless field devices 1a and 1b are controlled based on the control data transmitted from the wireless network management device 3 or the upper management device 4, and the measurement data obtained by the wireless field devices 1a and 1b are stored in the wireless network. Collected by the management device 3 or the higher-level management device 4.

  The field wireless devices 1a and 1b have an infrared communication function, and can transmit and receive various types of information to and from an external infrared communication device. Specifically, the wireless field devices 1a and 1b perform infrared communication with the provisioning device 2 and are necessary for entering various types of setting information (for example, the wireless network N2 formed by the wireless network management device 3). Information) and device information set in advance is transmitted.

  FIG. 2 is a front view showing a display unit of the field device according to the first embodiment of the present invention. As shown in FIG. 2, the display unit 10 of the wireless field devices 1 a and 1 b is a part having a circular shape in front view, and includes a display device 11, an infrared light receiving and emitting unit 12 (light receiving unit), and an instruction. A portion 13 is provided. The display device 11 is, for example, a liquid crystal display device, and displays measurement results such as temperatures measured by the field devices 1a and 1b, various messages for a worker who performs provisioning, information indicating the state of the device, and the like.

  The infrared light receiving / emitting unit 12 receives infrared light emitted from the provisioning device 2 and emits infrared light toward the provisioning device 2. Infrared communication between the field devices 1 a and 1 b and the provisioning device 2 is realized by receiving and emitting infrared light by the infrared light receiving and emitting unit 12. The instructing unit 13 is a part provided around the infrared light emitting / receiving unit 12 in order to instruct the worker who performs provisioning the position of the infrared light receiving / emitting unit 12. The instructing unit 13 is provided with a phosphor that emits fluorescence when irradiated with the laser light emitted from the provisioning device 2, and the position of the infrared light receiving and emitting unit 12 is instructed by the fluorescence emitted from the phosphor. The

  In addition, this instruction | indication part 13 should just be provided in at least one part of the circumference | surroundings of the infrared light receiving / emitting part 12. FIG. That is, as shown in FIG. 2, it may be provided in the vicinity of the infrared light receiving and emitting unit 12 so as to cover the infrared light receiving and emitting unit 12, and near the upper part, the lower part, the left part, and the right of the infrared light receiving and emitting part 12. It may be provided in one or a plurality of parts in the vicinity of the part. Alternatively, it may be provided in the entire display unit 10 excluding the display device 11 and the infrared light emitting / receiving unit 12.

  The provisioning device 2 is capable of infrared communication with the field wireless devices 1a and 1b, and is operated by an operator who installs and maintains the field wireless devices 1a and 1b, and stores various information for the field wireless devices 1a and 1b. Make settings and changes. Specifically, the provisioning device 2 performs infrared communication with the wireless field devices 1a and 1b to output the above-described various setting information (information necessary for entering the wireless network N2) and wirelessly. Device information preset in the field devices 1a and 1b is acquired.

  The provisioning device 2 includes a terminal device 2a, an infrared adapter 2b (infrared communication device), and a connection cable 2c. The terminal device 2a is a portable terminal device such as a notebook personal computer. In the terminal device 2a, software for provisioning the wireless field devices 1a and 1b and software (drivers) for driving the infrared adapter 2b are installed.

  The infrared adapter 2b is connected to the terminal device 2a by a connection cable 2c such as a USB (Universal Serial Bus) cable, for example, and emits infrared light toward the field devices 1a and 1b under the control of the terminal device 2a. Infrared light emitted from the devices 1a and 1b is received. Infrared communication between the field devices 1a and 1b and the provisioning device 2 is realized by receiving and emitting infrared light by the infrared adapter 2b.

  The infrared adapter 2b emits laser light in a direction in which infrared light is emitted in accordance with the operation of the operator. The laser light emitted from the infrared adapter 2b is visible laser light (for example, red laser light having a wavelength of about 635 to 690 nm or green laser light having a wavelength of about 530 nm). In this way, the laser beam is emitted from the infrared adapter 2b so that the operator can easily turn the infrared adapter 2b in the direction of the infrared light receiving / emitting unit 12 (see FIG. 2) provided in the wireless field devices 1a and 1b. This is so that they can be matched.

  3A and 3B are views showing the appearance of the infrared communication device according to the first embodiment of the present invention, in which FIG. 3A is a plan view showing a state where a connection cable is connected, and FIG. 3B is a front perspective view. (C) is a rear perspective view. As shown in FIG. 3, the infrared adapter 2 b is a member having a plate-like housing having a substantially rectangular shape in plan view, and is used in a state of being gripped by an operator's right hand or left hand. The infrared adapter 2b is provided with an infrared light receiving / emitting unit 21 (infrared light emitting unit, infrared light receiving unit) and a laser light emitting unit 22 (laser light emitting unit) on the front surface 20a, and connected to the back surface 20b. A connector 23 (interface portion) is provided, and a switch 24 (switch portion) is provided on the upper surface 20c thereof.

  The infrared light emitting / receiving unit 21 emits infrared light toward the wireless field devices 1a and 1b and receives infrared light emitted from the wireless field devices 1a and 1b. The laser light emitting unit 22 emits laser light having the above-described wavelength in the direction in which infrared light is emitted from the infrared light receiving / emitting unit 21. The connection connector 23 is, for example, a female USB connector, and is connected to one end of the connection cable 2c to control signals from the terminal device 2a (control for controlling whether or not infrared light is emitted from the infrared light receiving and emitting unit 21). Signal) is input. By providing this connection connector 23, the connection cable 2c is detachable from the infrared adapter 2b.

  The switch 24 is operated by an operator, and switches whether to emit laser light from the laser emitting unit 22 according to the operation. Specifically, when the switch 24 is pressed by the operator, laser light is emitted from the laser light emitting unit 22. The power necessary for emitting infrared light from the infrared light emitting / receiving unit 21 or emitting laser light from the laser light emitting unit 22 is supplied from the terminal device 2a via the connection cable 2c. Moreover, you may comprise so that emission of a laser beam can be controlled by the control signal output from the terminal device 2a.

  The wireless network management device 3 connects the wired network N1 to which the higher-level management device 4 is connected and the wireless network N2 to which the wireless field devices 1a and 1b are connected, and the wireless field devices 1a and 1b and the higher-level management device 4 Relays various data transmitted / received between them, and controls the field wireless devices 1a and 1b under the management of the host management device 4. The wireless network management device 3 also performs wireless communication in conformity with the wireless communication standard ISA100.11a.

  Specifically, the wireless network management device 3 controls the wireless field devices 1a and 1b participating in the wireless network N2 (for example, control such as opening / closing of valves) and wireless under the management of the upper management device 4. Collection of measurement data measured by the field wireless devices 1a and 1b entering the network N2 is performed. In the wireless network management device 3, device information indicating a wireless field device permitted to enter the wireless network N2 is registered, and a new wireless field device enters the wireless network N2 using this device information. Entry processing for determining whether or not to make it happen.

  The host management device 4 is connected to the wired network N1 and is a device operated by an administrator of the communication system CS1, and is realized by, for example, a desktop or notebook personal computer. The host management device 4 exchanges various information with the wireless network management device 3, or transmits various control data to the wireless field devices 1a and 1b via the wireless network management device 3, thereby managing the wireless network. The device 3 and the field wireless devices 1a and 1b are managed.

  Next, an operation when the wireless field device 1a in FIG. 1 is newly entered into the wireless network N2 of the communication system CS1 having the above configuration will be described. When a wireless field device 1a is newly entered into the wireless network N2, first, an operator inputs information to be registered in the wireless field device 1a to the terminal device 2a of the provisioning device 2. Specifically, the wireless network ID, the join key, the address information of the wireless network management device 3 and the like are input.

  When the above input work is completed, the worker holds, for example, the terminal device 2a of the provisioning device 2 with the left hand, the infrared adapter 2b with the right hand, and the free finger of the right hand holding the infrared adapter 2b. Instructs the terminal device 2a to start infrared communication. When this instruction is given, the operator points the front surface 20a of the infrared adapter 2b toward the wireless field device 1a and realizes infrared communication with the wireless field device 1a, and a switch 24 provided on the infrared adapter 2b. Is pressed to emit laser light from the infrared adapter 2b.

  Here, for example, if the wireless field device 1a is installed in a dim place, the operator cannot accurately point the front surface 20a of the infrared adapter 2b toward the infrared light receiving / emitting unit 12 of the wireless field device 1a. For this reason, the operator performs an operation of searching for a direction in which infrared communication is possible by shaking the infrared adapter 2b up, down, left, and right. During the operation, if the laser beam is applied to the instruction unit 13 provided in the display unit 10 of the wireless field device 1a, the instruction unit 13 emits fluorescence. Since the operator can know the position of the infrared light receiving and emitting unit 12 of the wireless field device 1a by this fluorescence, the direction of the infrared adapter 2b is fixed in the direction in which the fluorescence is emitted.

  As described above, since laser light is emitted from the infrared adapter 2b in the direction in which infrared light is emitted, if the direction of the infrared adapter 2b is fixed in the direction in which fluorescence is emitted, the infrared light receiving / emitting unit of the infrared adapter 2b 21 is inevitably directed toward the infrared light receiving and emitting unit 12 of the wireless field device 1a, and infrared communication is possible. As a result, information input to the terminal device 2a is transmitted to the wireless field device 1a via the infrared adapter 2b, and device information of the wireless field device 1a is transmitted to the terminal device 2a via the infrared adapter 2b for provisioning. Is completed.

  When the provisioning is completed, the device information of the field wireless device 1a obtained by the terminal device 2a is output to the upper management device 4. Then, the administrator performs an operation of registering the device information of the field wireless device 1 a in the wireless network management device 3 by operating the upper management device 4. When the above operation is completed, since the device information of the wireless field device 1a is registered in the wireless network management device 3, the wireless field device 1a is permitted to enter the wireless network N2 by the wireless network management device 3.

  As described above, in the present embodiment, the infrared adapter 2b is provided with the laser light emitting unit 22 that emits laser light in the direction in which infrared light is emitted, in addition to the infrared light receiving and emitting unit 21 that emits infrared light. For the wireless field devices 1a and 1b, an instruction unit 13 that emits fluorescence by irradiating laser light to at least a part of the periphery of the infrared light receiving and emitting unit 12 that receives infrared light emitted from the infrared adapter 2b is provided. The configuration is provided. For this reason, the operator can determine the orientation of the infrared adapter 2b with reference to the fluorescence emitted by the laser beam emitted from the infrared adapter 2b being applied to the instruction unit 13 of the wireless field devices 1a and 1b. it can. Thereby, the workability of the worker is improved, and the work related to provisioning can be completed in a short time.

[Second Embodiment]
FIG. 4 is a front view of a field device according to the second embodiment of the present invention. The wireless field device 1c shown in FIG. 4 is different from the wireless field devices 1a and 1b shown in FIGS. 1 and 2 in that the instruction unit 13 provided in the display unit 10 is changed to an instruction unit 14. . 1 and 2 are provided with a fluorescent material that emits fluorescence when irradiated with laser light. However, the instruction unit 14 of the wireless field device 1c shown in FIG. Is provided with a reflecting member for reflecting the laser beam. The instruction unit 13 shown in FIG. 2 is provided in the vicinity of the infrared light emitting / receiving unit 12 so as to cover the infrared light receiving / emitting unit 12, but the instruction unit 14 shown in FIG. It is provided on the entire display unit 10 excluding the light emitting unit 12.

  The operator can improve the work efficiency similarly to the first embodiment by using the laser beam reflected by the instruction unit 14 as a mark. Here, as the reflecting member provided in the instruction unit 14, a corner cube or the like that reflects the laser light from the infrared adapter 2b toward the infrared adapter 2b can be used. The corner cube is, for example, a plastic material formed such that unit members having three reflecting surfaces that form an angle of 90 ° with each other are spread over the entire display unit 10 except the display device 11 and the infrared light emitting / receiving unit 12. belongs to.

  FIG. 5 is a block diagram showing a main configuration of an infrared communication device according to the second embodiment of the present invention. The infrared adapter 5 as the infrared communication device of the present embodiment has the same external configuration as the infrared adapter 2b shown in FIGS. 1 and 3, and is used in a state of being connected to the terminal device 2a by the connection cable 2c. However, the infrared adapter 5 of the present embodiment can measure the distance to the wireless field device 1c and control whether to perform infrared communication based on the measurement result.

  As shown in FIG. 5, the infrared adapter 5 includes a switch unit 31, a laser driving unit 32, a laser light receiving unit 33 (laser light receiving unit), a distance calculation unit 34 (calculation unit), a control unit 35, and an infrared light receiving / emitting unit 36. Is provided. The switch unit 31 operates the laser driving unit 32 according to the operation of the switch 24 shown in FIG. 3 by the operator. The laser driving unit 32 includes the laser light emitting unit 22 shown in FIG. 3 and drives the laser light emitting unit 22 in accordance with an instruction from the switch unit 31. The laser light receiving unit 33 receives the laser light reflected from the wireless field device 1c.

  The distance calculation unit 34 obtains the distance to the wireless field device 1c based on the light reception result of the laser light receiving unit 33. For example, the laser light emitting unit 22 shown in FIG. 2 is driven by the laser driving unit 32 to emit laser light, and then the laser light reflected by the instruction unit 14 of the wireless field device 1 c is received by the laser light receiving unit 33. Find the distance from the time until. The control unit 35 controls whether or not to perform infrared communication with the field device 1 c using the infrared light receiving and emitting unit 36 according to the distance obtained by the distance calculating unit 34. The infrared light receiving / emitting unit 36 is a block corresponding to the infrared light receiving / emitting unit 21 shown in FIG. 3.

  In the above configuration, as in the first embodiment, the worker holds the terminal device 2a of the provisioning device 2 in the left hand and the infrared adapter 5 in the right hand, for example, while the infrared adapter 5 is held in the wireless field device 1c. The switch 24 provided on the infrared adapter 5 is pressed to emit laser light from the infrared adapter 5. When the laser light from the infrared adapter 5 is applied to the instruction unit 14 of the wireless field device 1c, the laser light is reflected toward the infrared adapter 5 as shown in FIG. This is due to the nature of the corner cube that reflects incident light in that direction. FIG. 6 is a diagram showing an optical path of laser light in the second embodiment of the present invention.

  When the laser beam reflected by the instruction unit 14 of the wireless field device 1c is received by the laser light receiving unit 33 of the infrared adapter 5, the distance calculation unit 34 obtains the distance to the wireless field device 1c, and information indicating the distance Is output to the control unit 35. Based on the information from the distance calculation unit 34, the control unit 35 determines whether or not infrared communication is possible with the field wireless device 1c, and when determining that infrared communication is possible, Based on a control signal from the terminal device 2a, the infrared light receiving and emitting unit 36 is controlled to execute infrared communication with the field wireless device 1c.

  As described above, in the present embodiment, the operator uses the reflected light obtained by irradiating the instruction unit 14 of the wireless field device 1c with the laser light emitted from the infrared adapter 5 as a mark, and the operator is directed to the direction of the infrared adapter 5. Can be determined. Thereby, the workability of the worker is improved, and the work related to provisioning can be completed in a short time. Moreover, in this embodiment, since it is controlled whether infrared communication is performed according to the distance with the field wireless device 1c, the convenience of the operator can be improved.

[Third Embodiment]
FIG. 7 is a diagram showing a main configuration of a communication system in which an infrared communication device and a field device according to the third embodiment of the present invention are used. As shown in FIG. 7, the communication system CS2 of the present embodiment is different from the communication system CS1 shown in FIG. 1 in that a provisioning device 6 (infrared communication device) is used instead of the provisioning device 2. The provisioning device 2 shown in FIG. 1 is capable of infrared communication by connecting the infrared adapter 2b to the terminal device 2a through the connection cable 2c. On the other hand, the provisioning device 6 shown in FIG. 7 is a dedicated device for provisioning having an infrared communication function.

  Specifically, the provisioning device 6 is a device having a flat casing having a substantially rectangular shape in plan view, like the infrared adapter 2b shown in FIG. 3, and is held by the right hand or left hand of the operator. Used in state. The provisioning device 6 is provided with an infrared light receiving / emitting unit 41 (infrared light emitting unit, infrared light receiving unit) and a laser light emitting unit 42 (laser light emitting unit) on the front surface 40a, and a display is provided on the upper surface 40b. A unit 43 and an operation unit 44 are provided.

  Even when the above provisioning device 6 is used, provisioning can be performed in the same procedure as in the first embodiment. That is, the operator operates the operation unit 44 of the provisioning device 6 to input information to be registered in a wireless field device (for example, the wireless field device 1a) to be entered into the wireless network N2, and the operation unit 44 is An operation is performed to start infrared communication and laser light is emitted. When the laser beam emitted from the provisioning device 6 is irradiated onto the instruction unit 13 of the wireless field device 1a, the instruction unit 13 emits fluorescence. Therefore, if the orientation of the provisioning device 6 is fixed in the direction in which the fluorescence is emitted, Infrared communication is reliably performed with the field wireless device 1a.

  As described above, in the present embodiment, the provisioning device 6 including the infrared light emitting / receiving unit 41 that emits infrared light and the laser light emitting unit 42 that emits laser light in the direction in which the infrared light is emitted is used. For this reason, as in the first embodiment, the orientation of the provisioning device 6 can be determined by using the fluorescence emitted by irradiating the instruction unit 13 of the field device 1a, 1b with the laser beam as a mark. The workability of a person can be improved and the work related to provisioning can be completed in a short time. The provisioning device 6 can also be used when provisioning the wireless field device 1c (see FIG. 4) having the instruction unit 14 that reflects the laser light.

[Fourth Embodiment]
FIG. 8 is a perspective view in which a part of an infrared communication device according to the fourth embodiment of the present invention is cut away. As shown in FIG. 8, the provisioning device 7 (infrared communication device) is a device having a plate-like casing having a substantially rectangular shape in plan view, like the provisioning device 6 shown in FIG. 7. Is different from the provisioning apparatus 6 shown in FIG. 7 in that the infrared adapter 2b shown in FIG. 7 is configured to be detachable and infrared communication is possible with the infrared adapter 2b attached.

  Specifically, the provisioning device 7 has an opening 51 in which the infrared adapter 2b is inserted on the front surface 50a, and a display unit 52 and an operation unit 53 on the upper surface 50b. Inside the provisioning device 7, a hole portion 54 that communicates with the opening 51 and accommodates the infrared adapter 2 b is formed. The hole 54 is provided with a connection connector 55 that fits with the connection connector 23 of the infrared adapter 2b in a state where the infrared adapter 2b is mounted. The connection connector 55 is, for example, a male USB connector.

  In a state where the infrared adapter 2b is inserted in the provisioning device 7, a control signal (a control signal for performing infrared communication or a laser beam is emitted from the provisioning device 7 via the connection connectors 55 and 23 in a fitted state. Control signal) is input to the infrared adapter 2b. The display unit 52 and the operation unit 53 provided on the upper surface 50b of the provisioning apparatus 7 are the same as the display unit 43 and the operation unit 44 provided on the upper surface 40b of the provisioning apparatus 6 shown in FIG.

  Even using the provisioning apparatus 7 described above, provisioning can be performed in the same procedure as the provisioning 6 shown in FIG. For this reason, the provisioning apparatus uses as a mark the fluorescence emitted by irradiating the indication unit 13 of the field devices 1a and 1b with the laser beam or the laser beam reflected by the indication unit 14 of the field device 1c shown in FIG. 7 can be determined, whereby the workability of the worker is improved and the work related to provisioning can be completed in a short time.

  The infrared communication device and the field device according to the embodiment of the present invention have been described above, but the present invention is not limited to the above-described embodiment, and can be freely changed within the scope of the present invention. For example, in the above-described embodiment, the wireless field device capable of wireless communication and infrared communication conforming to ISA100.11a has been described as an example. However, the present invention is a wireless field device capable of wired communication and infrared communication. It is also possible to apply to.

  In the above-described embodiment, an example has been described in which the wireless field devices 1a, 1b, and 1c, the infrared adapters 2b and 5 and the provisioning devices 6 and 7 can emit and receive infrared light. However, the infrared adapters 2b and 5 and the provisioning device 6 can only emit infrared light, and the feel devices 1a, 1b and 1c can receive only infrared light. It is possible to apply.

1a, 1b, 1c Field wireless device 2b Infrared adapter 5 Infrared adapter 6, 7 Provisioning device 12 Infrared light receiving / emitting unit 13, 14 Instructing unit 21 Infrared light receiving / emitting unit 22 Laser emitting unit 23 Connector 24 Switch 31 Switch unit 33 Laser receiving unit 34 Distance calculation unit 35 Control unit 41 Infrared light emitting / receiving unit 42 Laser emitting unit

Claims (5)

In infrared communication devices that perform infrared communication with field devices ,
A flat-shaped casing to be gripped;
An infrared light emitting unit that is provided on the front surface of the housing and emits infrared light toward the field device ;
A laser light emitting portion that is provided on the front surface of the housing and emits laser light in a direction in which infrared light is emitted from the infrared light emitting portion ;
An infrared communication device, comprising: a switch unit that is provided on an upper surface of the housing and switches whether to emit laser light from the laser light emitting unit according to an operation . The infrared communication apparatus according to claim 1, further comprising an interface unit to which a control signal for controlling whether or not infrared light is emitted from the infrared light emitting unit is input. A laser beam receiving unit that receives reflected light of the laser beam emitted from the laser beam emitting unit;
A calculation unit that calculates a distance from the field device based on the reflected light received by the laser light receiving unit;
The infrared communication apparatus according to claim 1, further comprising: a control unit that controls whether infrared light is emitted from the infrared light emitting unit according to the distance calculated by the calculating unit. The infrared communication device according to any one of claims 1 to 3 , further comprising an infrared light receiving unit that receives infrared light from the field device. In field devices capable of infrared communication,
A light receiving unit that receives infrared light emitted from the infrared communication device according to any one of claims 1 to 4 ,
Provided in at least a part of the periphery of the light receiving unit, emits fluorescence by irradiation of laser light emitted from the infrared communication device, or directs laser light emitted from the infrared communication device toward the infrared communication device A field device comprising: an instruction unit for reflecting.

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