JP2011038052A - Device and method for detecting position of coke oven mobile machines - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device and a method for precisely and inexpensively detecting positions of coke oven mobile machines. <P>SOLUTION: A position detection device includes a detection device 41 for absolute rotation angle, measuring an absolute rotation angle of a roller 42, contacting rails 31-35 and rotating along with the movement of mobile machines 21-25, and is provided with a position information output means for outputting position information indicating present positions of mobile machines 21-25 and an error correction means for correcting errors in position information of the mobile machines 21-25 output from the position information output means. The error correction means includes: standard labeling 51 disposed at a coke oven 10; noncontact sensors 52 mounted on the mobile machines 21-25 detecting the standard labeling 51; and a replacement means for replacing position information of the mobile machines 21-25 output from the position information means at the time, when the standard labeling 51 is detected by the noncontact sensors 52, with the standard position information preliminary added to the standard labeling 51. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a position detection device and a position detection method for detecting a current position of a mobile device (for example, an extruder, a charcoal vehicle, a guide vehicle, a bucket vehicle, and a fire extinguisher) installed in a coke oven.

  A variety of mobile machines are installed in coke ovens that produce coke by carbonizing raw coal. These mobile machines include coal cars that charge raw coal into coke ovens, high-temperature red hot conditions from coke ovens. Extruder that extrudes coke (hereinafter sometimes referred to as red hot coke), bucket truck that transports red hot coke to dry fire extinguishing equipment, fire extinguisher that transports red hot coke to wet fire extinguishing equipment, red heat extruded from coke oven There are guide cars that guide coke to bucket cars or fire fighting cars.

  In the operation of the coke oven, these mobile machines are moved to a predetermined position in the coke oven and stopped, and various operations such as red hot coke firing and fire extinguishing are performed. For this purpose, unmanned automatic operation of various mobile devices is being implemented. In order to perform such an unattended automatic operation of a mobile device, it is required to automatically stop a mobile device moving on a track such as a rail at a predetermined position. It is necessary to detect the position accurately.

  Conventionally, a guided radio system has been used for detecting the position of a mobile device. That is, the radio wave transmitted from the induction radio line laid along the trajectory of the mobile device is received by the antenna mounted on the mobile device, the current position of the mobile device is detected, and the obtained current position is Based on this, the mobile device is automatically moved or stopped. Then, the mobile device repeats the operation of moving to a target position designated by a predetermined schedule, stopping, moving to the next target position after performing a predetermined work at the position. It was. Moreover, the position detection of the mobile device by the induction radio method has been performed by the absolute address method except for the extruder.

Japanese Patent Laid-Open No. 2004-199665 JP 2007-264735 A Japanese Patent No. 3603604 JP 2008-174484 A Japanese Patent No. 3949086

However, the position detection of the mobile device by the induction wireless system has a problem that the cost of equipment and construction becomes very expensive because it is necessary to lay the induction wireless line along the entire track of the mobile device.
SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a position detection device and a position detection method that can solve the above-described problems of the prior art and can accurately and inexpensively detect the current position of a coke oven mobile unit. .

  In order to solve the above-described problems, the present invention has the following configuration. That is, the position detection device for a mobile device of a coke oven according to the present invention is a position detection device that detects a current position of a mobile device used for operation of a coke oven, and is a reference position of the mobile device mounted on the mobile device. A position information output means for outputting position information indicating the current position of the mobile device, and an error in the position information of the mobile device output by the position information output means. Error correction means, and the error correction means includes a reference sign installed at a predetermined position on or near the track of the mobile device, and a non-contact sensor mounted on the mobile device for detecting the reference sign When the reference sign is detected by the non-contact sensor, the position information of the mobile device output from the position information output means at that time is attached to the reference sign in advance. And position information replacement means for replacing the criteria position information, characterized in that it comprises a.

In such a coke oven mobile device position detection apparatus according to the present invention, the decoder may be a rotation detection device that measures the rotational speed or rotational angle of a roller that rotates as the mobile device moves. preferable.
Moreover, it is preferable that the said coke oven is provided with the furnace group formed by arranging several kilns in parallel, and the said reference | standard label | marker is arrange | positioned at the end part of the said furnace group, and at least one of the said kiln.

  Furthermore, the mobile machine is a loaded car for charging raw coal into the coke oven, an extruder for extruding coke from the coke furnace, a bucket truck for transporting the coke to a dry fire extinguishing facility, and the coke to a wet fire extinguishing facility. It is preferable that it is at least one of the fire extinguisher to perform and the guide car which guides the coke pushed out from the coke oven to the bucket car or the fire extinguisher.

  Furthermore, the method for detecting the position of a mobile device of a coke oven according to the present invention acquires position information indicating a current position of the mobile device used for operation of the coke oven, and determines the mobile device based on the acquired position information. When performing various operations of the coke oven by moving to the position, the position information is acquired by a position information output means equipped with a decoder mounted on the mobile device and measuring a displacement amount from a reference position of the mobile device. In addition, when a reference sign is set at a predetermined position on or near the orbit of the mobile device, and the reference sign is detected by a non-contact sensor mounted on the mobile device, output from the position information output means at that time The position information of the mobile device is corrected by replacing the position information of the mobile device with reference position information previously given to the reference mark.

In such a coke oven mobile device position detection method according to the present invention, the decoder may be a rotation detector that measures the rotational speed or rotational angle of a roller that rotates as the mobile device moves. preferable.
In addition, the coke oven preferably includes a furnace group in which a plurality of kilns are arranged side by side, and the reference mark is preferably disposed at an end of the furnace group and at least one of the kilns.

  Furthermore, the mobile machine is a loaded car for charging raw coal into the coke oven, an extruder for extruding coke from the coke furnace, a bucket truck for transporting the coke to a dry fire extinguishing facility, and the coke to a wet fire extinguishing facility. It is preferable that it is at least one of the fire extinguisher to perform and the guide car which guides the coke pushed out from the coke oven to the bucket car or the fire extinguisher.

  According to the position detecting device and the position detecting method for the coke oven mobile device according to the present invention, the current position of the coke oven mobile device can be detected accurately and inexpensively.

It is a figure explaining the position detection apparatus and position detection method of a moving machine concerning the present invention, and is a key map showing the composition of the coke oven of this embodiment. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure explaining the position detection apparatus and position detection method of the moving machine which concern on this invention, and is a schematic perspective view which shows the coke oven and various moving machines of this embodiment. It is a figure explaining the structure of the positional information output means installed in the extruder. It is a figure explaining the structure of an error correction means. It is a figure explaining the structure of another error correction means.

  DESCRIPTION OF EMBODIMENTS Embodiments of a coke oven mobile device position detection apparatus and position detection method according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a conceptual diagram illustrating the configuration of a coke oven according to the present embodiment, and FIG. 2 is a schematic perspective view illustrating the coke oven and various mobile devices according to the present embodiment. In the following drawings, the same or corresponding parts are denoted by the same reference numerals.

  The coke oven is provided with a furnace group in which a plurality of kilns are arranged in a straight line, and is usually composed of a plurality of furnace groups. For example, the coke oven 10 shown in FIG. 1 is composed of five furnace groups 11 to 15 arranged in a straight line. Each of the furnace groups 11 to 15 includes a plurality of kilns arranged in a straight line. For example, the fourth furnace group 14 includes about 25 to 35 kilns 14A to 14E as shown in FIG. ing.

  In such a coke oven 10, various mobile devices used for the operation of the coke oven 10 are installed. As this moving machine, a coal loading vehicle 21 for charging raw coal (not shown) into the coke oven 10, an extruder 22 for extruding red hot coke C from the coke oven 10, and a bucket for conveying the red hot coke C to the dry fire extinguishing equipment 27. There are a car 23, a fire extinguisher 24 that conveys the red hot coke C to the wet fire extinguishing equipment 28, and a guide car 25 that guides the red hot coke C pushed out of the coke oven 10 to the bucket car 23 or the fire extinguisher 24.

  Each of these various mobile devices 21 to 25 is provided in a single coke oven. For example, in the coke oven 10 shown in FIG. 1, three coal-loaded vehicles 21, four extruders 22, two bucket vehicles 23, two fire extinguishing vehicles 24, and three guide vehicles 25 are provided. . In addition, rails dedicated to various mobile units are laid in a straight line along the coke oven 10 around the coke oven 10 (the upper portion of the coke oven 10 with respect to the charcoal vehicle 21). That is, as shown in FIG. 2 (not shown in FIG. 1), a rail 31 for a charcoal vehicle, a rail 32 for an extruder, a rail 33 for a bucket car fire extinguisher and a guide, which are tracks of various mobile machines 21 to 25, a guide A car rail 35 is laid.

  Each of the mobile devices 21 to 25 is driven by a dedicated drive device mounted on each of the mobile devices 21 to 25 and can move on the dedicated rails 31 to 35. In accordance with the instruction of (No.), the rails are moved on the rails 31 to 35 and arranged at predetermined positions, and a series of operations (for example, firing of the red hot coke C and extinguishing) are performed in cooperation. Note that only one of the bucket car 23 and the fire extinguisher 24 may be installed, or both may be installed. When only one is installed, only the dry fire extinguishing equipment 27 and the wet fire extinguishing equipment 28 may be installed.

  Next, the operation content and operation procedure of the coke oven 10 will be described. The coke oven 10 is provided with a computer system for performing unattended automatic operation of the coke oven 10. This computer system manages and controls the on-board system (not shown) mounted on each of the mobile devices 21 to 25 and the fire extinguishing facilities 27 and 28, and all the mobile devices 21 to 25 and the fire extinguishing facilities 27 and 28. And a ground system (not shown).

  Since the ground system and the onboard system of each of the mobile devices 21 to 25 are connected by radio (or induction radio), the position information of the mobile devices 21 to 25 sent from the onboard system by this radio is used to determine the ground system. The system can grasp the current positions of the mobile devices 21 to 25. And the ground system can arrange | position each mobile device 21-25 to a predetermined position by radio | wireless. Further, various operations such as extrusion of the extruder 22 and fire extinguishing of the dry fire extinguishing equipment 27 are performed by commands from the ground system.

  The onboard system of the coal-mounted vehicle 21 that has received a command from the ground system wirelessly drives the drive unit mounted on the coal-equipped vehicle 21 to move the coal-loaded vehicle 21 loaded with raw coal along the rails 31. At the same time, raw coal is charged into each kiln included in the coke oven 10. And in each kiln, the raw material coal charged is dry-distilled at high temperature, and red hot coke C is manufactured.

  Further, each of the on-board systems of the extruder 22, the bucket car 23 (or the fire extinguishing car 24), and the guide car 25 that receives a command from the ground system by radio is the extruder 22, the bucket car 23 (or the fire extinguishing car 24) , And the drive devices respectively mounted on the guide wheel 25 are driven to move the extruder 22, the bucket wheel 23 (or the fire extinguishing vehicle 24), and the guide wheel 25 along the rails 32, 33, 35.

  Each of the charcoal vehicle 21, the extruder 22, the bucket vehicle 23 (or the fire extinguisher 24), and the guide vehicle 25 is provided with a dedicated position detection device, and the current position of each of the mobile devices 21 to 25 is the position. The position information indicating the current position of each of the mobile devices 21 to 25 measured by the detection device and output from each position detection device is transmitted from each onboard system to the ground system wirelessly. And based on the sent positional information, the ground system sends a command to each mobile unit 21-25, and moves each mobile unit 21-25 to the target position, that is, the side of a specific kiln (for example, kiln 14A). It is like that.

  When the ground system confirms that all the mobile devices 22 to 25 have stopped at a predetermined position, the ground system issues a command to start the kiln removal work. That is, the on-board system of the extruder 22 that has received a command from the ground system drives the driving device mounted on the extruder 22 to open the furnace lid on the extruder side of the kiln and the furnace lid on the coke outlet side. After that, the extrusion ram 37 of the extruder 22 (the extrusion ram 37 is composed of a ram head 38 that directly contacts the red hot coke C and a ram beam 39 that pushes the ram head 38) is moved horizontally. Then, the produced red hot coke C is pushed out from the inside of the kiln, and the bucket wheel 23 (specifically, the bucket 23a of the bucket wheel 23) or the fire extinguishing via the guide wheel 25 waiting at the opening on the coke outlet side of the kiln. It is discharged to the car 24.

When the extrusion of the red hot coke C is completed, the on-board system of the extruder 22 that has received a command from the ground system pulls the extrusion ram 31 back into the extruder 22 and closes both the furnace lids. Then, the onboard system of the charcoal vehicle 21 that has received a command from the ground system recharges the raw coal into the kiln from the charcoal vehicle 21 and performs dry distillation again.
The bucket car 23 (or the fire extinguisher 24) loaded with the red hot coke C taken out of the kiln moves on the rail 33 laid along the coke oven 10 according to the command of the ground system, and the dry fire extinguishing equipment 27 (or wet type). Stop at the location of the fire extinguishing equipment 28). At this time, as described above, the current position of the bucket truck 23 (or fire extinguisher 24) is measured by the position detection device, and the current position of the bucket truck 23 (or fire extinguisher 24) output from the position detection apparatus is determined. The position information shown is sent to the ground system by radio.

  When the red hot coke C is transferred to the dry fire extinguishing equipment 27 (or wet fire extinguishing equipment 28) in this way, a dry fire extinguishing work (or wet fire extinguishing work) of the red hot coke C is performed according to a command from the ground system. The bucket car 23 (or the fire extinguishing car 24) that has finished transporting the red hot coke C to the dry fire extinguishing equipment 27 (or the wet fire extinguishing equipment 28) re-enters the red hot coke C from another kiln (for example, the kiln 14B) according to a command from the ground system. Move on rail 33 to receive and stop on the side of the kiln.

  Further, the extruder 22 and the guide wheel 25 also move on the rail 32 and the rail 35 according to a command from the ground system, and stop at the side of the kiln where the bucket wheel 23 (or the fire extinguishing vehicle 24) is located. When the ground system confirms that all the mobile devices 22 to 25 have stopped at a predetermined position, the ground system issues a command to start the kiln removal work. By repeating such operations, the coke oven 10 is operated.

  As described above, in the operation of the coke oven 10, the above-described various mobile units 21 to 25 are moved to a predetermined position of the coke oven 10 and stopped, and then various kinds of operations such as taking out the red hot coke C and extinguishing the fire are performed. Work is done. For example, when performing the firing operation of the red hot coke C, the extruder 22, the bucket wheel 23 (or the fire extinguisher 24), and the guide wheel 25 are all included in a specific kiln among a plurality of kilns constituting the furnace group. Must be placed. In order to perform unattended automatic operation of the various mobile devices 21 to 25, it is required to automatically stop the various mobile devices 21 to 25 moving on the rails 31 to 35 at predetermined positions. In addition, each of the mobile devices 21 to 25 is provided with a position detection device that accurately detects the current position of the mobile devices 21 to 25 that are stopped or moving.

  This position detection device detects the current positions of the mobile devices 21 to 25, and is output by position information output means for outputting position information indicating the current positions of the mobile devices 21 to 25 and the position information output means. Error correction means for correcting an error in position information of the mobile devices 21 to 25. Since the position information output means includes a decoder that is mounted on the mobile devices 21 to 25 and measures the amount of displacement from the reference position of the mobile devices 21 to 25, position information indicating the absolute position of the mobile devices 21 to 25 is obtained. Can be output. Therefore, the position detection of the mobile devices 21 to 25 can be performed by the absolute address method.

  Further, the error correction means includes a reference sign installed on a predetermined position on the rails 31 to 35 of the mobile devices 21 to 25 or in the vicinity of the rails 31 to 35, and a non-contact that is mounted on the mobile devices 21 to 25 and detects the reference signs. When the reference sign is detected by the type sensor and the non-contact type sensor, the position information of the mobile units 21 to 25 output from the position information output means at that time is used as the reference position information given in advance to the reference sign. Position information replacement means for replacement.

  A specific example of the position information output means of the position detection apparatus as described above will be described with reference to FIG. 3 showing an enlarged view of part A in FIG. . The extruder 22 measures an angle of rotation and outputs an absolute value of the angle of rotation, and an absolute rotation angle detector 41 (for example, ABSOCODER (registered trademark)) and an extruder rail 32 which is the track of the extruder 22 are extruded. A roller 42 (for example, a measuring roll) that rotates with the movement of the machine 22 and a universal joint 43 that connects the absolute rotation angle detection device 41 and the roller 42 are installed. The absolute rotation angle detection device 41 corresponds to a decoder that is a constituent feature of the present invention. Further, a rotation detection device that measures the rotation speed of the roller 42 may be used as the decoder.

  When the extruder 22 is moved, the roller 42 is rotated accordingly, and the rotation of the roller 42 is transmitted to the absolute rotation angle detection device 41 by the universal joint 43, and the absolute rotation of the roller 42 is performed by the absolute rotation angle detection device 41. An angle (displacement angle from the reference angle position of the roller 42), that is, an absolute signal is output. The position information output means is provided with a calculation processing unit, and since the movement distance per predetermined rotation angle is set in the calculation processing unit, the position information output means receives the value of the rotation angle output from the absolute rotation angle detection device 41. The arithmetic processing unit calculates a displacement amount (movement distance) from the reference position of the extruder 22 and obtains the current position of the extruder 22. If the extruder 22 has not yet moved, the result is that the current position of the extruder 22 is the reference position (origin).

  Position information indicating the current position of the extruder 22 obtained in this way is output from the position information output means to the on-board system of the extruder 22, and is sent from the on-board system to the ground system by radio. Then, the ground system issues a command based on the sent position information, drives the extruder driving device mounted on the extruder 22, and moves the extruder 22. Even during the movement of the extruder 22, the current position of the extruder 22 is sequentially detected by the position detection device. Therefore, when the extruder 22 moves to the target position, the ground system stops the extruder 22. In addition, the same position information output means is installed also in the charcoal vehicle 21, the bucket vehicle 23 (or fire extinguishing vehicle 24), and the guide vehicle 25, and the same operation is performed.

  In this way, the positions of various mobile machines such as the extruder 22 are managed based on the position information from the position detection device. According to such position detection of the mobile devices 21 to 25, since a decoder such as the absolute rotation angle detection device 41 is inexpensive, the cost of necessary equipment is low. Moreover, since it is not necessary to install an apparatus along all the track | orbits of the mobile devices 21-25 like a guidance radio system, the cost of construction is cheap.

  However, there is a possibility that an error may occur in the position information output from the position information output means, that is, the measurement value by the decoder. For example, in the case of the position information output means as shown in FIG. 3, there is a possibility that an error may occur in the measurement value by the absolute rotation angle detection device 41 due to a slip or the like generated between the extruder rail 32 and the roller 42. If errors accumulate and become larger while the operation of the coke oven 10 is continued, inconvenience may occur in the operation of the coke oven 10, so this error needs to be corrected. Since the position detection apparatus of the present invention includes the error correction means, the error can be corrected as needed to prevent inconvenience in the operation of the coke oven 10.

  Here, a specific example of the error correction means for correcting the error of the position information of the mobile device output by the position information output means will be described with reference to FIG. 4 taking the case where the mobile device is the extruder 22 as an example. To do. (A) of FIG. 4 is the figure which looked at the state which the reference mark and non-contact-type sensor which comprise an error correction means are facing from the direction along a rail, (b) was mounted in the extruder. It is a front view (figure seen from the kiln side) of a non-contact type sensor.

  The error correcting means includes a reference mark 51 installed at a predetermined position on the extruder rail 32 or in the vicinity of the extruder rail 32, a non-contact sensor 52 mounted on the extruder 22 and detecting the reference mark 51, And a position information replacement unit comprising a calculation processing unit that does not. The number of reference signs 51 and non-contact sensors 52 installed in one place is four in FIG. 4, but may be one or may be other than four.

The reference mark 51 can be placed on the extruder rail 32 as long as it can be detected by the non-contact sensor 52 mounted on the extruder 22, and can be placed anywhere near the extruder rail 32. There is no problem. For example, you may install in the wall surface facing the extruder 22 among the furnace walls of the coke oven 10 (kiln) like FIG.
The non-contact type sensor 52 is mounted on the extruder 22, and when the extruder 22 moves on the extruder rail 32 and the reference mark 51 and the non-contact type sensor 52 face each other, the non-contact type sensor 52. Can detect the reference mark 51. The non-contact sensor 52 is preferably a proximity switch, and the reference mark 51 is preferably a standard detection object for a proximity switch. The proximity switch is a sensor that detects contact with a standard detection object without contact.

  The types of proximity switches and standard detection objects are not particularly limited, but are proximity switches defined in JIS C 8201-5-2, that is, inductive proximity switches that detect the presence of metal, metal and non-metal objects It is preferable to use a capacitive proximity switch that detects the presence of an electromagnetic wave, an ultrasonic proximity switch that detects an acoustic reflection object, a photoelectric proximity switch that detects the presence of an object, and a magnetic proximity switch.

  When the extruder 22 is moving on the extruder rail 32, the position information of the extruder 22 is output as needed from the position information output means, and is sent wirelessly from the onboard system of the extruder 22 to the ground system. However, when the non-contact sensor 52 mounted on the extruder 22 detects the reference mark 51, the position information replacement means of the error correction means operates. That is, since the position information indicating the absolute position where the reference mark 51 is installed is previously given to the reference sign 51 as the reference position information, when the non-contact sensor 52 detects the reference sign 51, At that time, the position information of the extruder 22 (position information where an error may have occurred) output from the position information output means and reached the on-machine system is replaced with the reference position information by the position information replacement means, Sent wirelessly to the system.

  If the reference mark 51 is set at a predetermined position on the orbit of the extruder 22, error correction by the error correction means is performed as needed, so that the current position of the extruder 22 can be accurately detected, and reliability is improved. High position detection is possible. The number of installation locations of the reference sign 51 is not particularly limited, but is preferably installed at a plurality of positions on the track. The more the number of installation locations, the more error correction is performed, so that the reliability of position detection becomes higher. In addition, the same error correction means is installed also in the coal loading vehicle 21, the bucket vehicle 23 (or fire extinguishing vehicle 24), and the guide vehicle 25, and the same operation is performed.

  Although the installation position (position on the orbit) of the reference mark 51 is not particularly limited, for example, the end (inlet or outlet) of each furnace group is preferable. Although depending on the operation mode of the coke oven 10, since the kiln removal operation is normally performed for each furnace group, a moving machine such as an extruder 22 passes through the side of the coal tower installed between the furnace groups. Therefore, if the reference sign 51 is installed in the part of the wall of the coal tower close to the furnace group, the reference sign 51 is installed at the end of each furnace group (see FIGS. 1 and 5).

  Moreover, it is preferable to install the reference sign 51 on the wall surface of the kiln. If it does so, also when the moving machines 21-25 stop beside a kiln and perform a kiln removal operation | work, the error correction by an error correction means can be performed. The reference sign 51 may be installed in one kiln, may be installed in a plurality of kilns, or may be installed in all kilns. Moreover, you may install the reference | standard mark 51 in both the edge part of each furnace group, and the wall surface of a kiln.

  When the reference sign 51 is installed at a plurality of positions on the orbit, when the non-contact sensor 52 detects the reference sign 51, it can be identified at which position on the orbit the reference sign 51 is located. Is preferred. The identification method is not particularly limited, but a method of identifying by the number of reference signs 51 installed in one place and the arrangement pattern thereof is preferable. This identification method will be described below.

  For example, as shown in FIG. 4, when four non-contact sensors 52 are used, if the number of reference signs 51 is changed depending on the location where the reference signs 51 are installed, the non-contact sensors 52 can detect them. It is possible to identify which installation location on the track is based on the number of reference signs 51. Even when the same number of reference signs 51 are installed, they can be identified by the difference in arrangement pattern. For example, in the case where one reference sign 51 is installed, the case where it is detected by the non-contact type sensor 52 at the upper left in FIG. 4B and the case where it is detected by the non-contact type sensor 52 at the lower right. Thus, it is possible to identify which installation location on the track. For example, when four non-contact sensors 52 are used, 15 installation locations can be identified by combining the number of reference markers 51 and the arrangement pattern.

  Further, an example in which five non-contact sensors 52 are used will be described with reference to FIG. In the example of FIG. 5, the reference signs 51 are installed at both ends (inlet and outlet) of each furnace group, and the number and arrangement pattern of the reference signs 51 differ depending on the installation locations (on the upper side of FIG. 5). As a result, the installation location can be identified. The five non-contact sensors 52 are arranged in a vertical line so that the upper three identify the furnace group and the lower two identify the inlet or outlet (right side or left side in FIG. 5). It has become.

  That is, if all the upper three non-contact sensors 52 detect the reference sign 51, the first mark is identified, and if all the reference signs 51 are not detected, the fifth sign is identified. Is done. Further, if the lower two of the upper three non-contact sensors 52 detect the reference sign 51, they are identified as the second furnace group, and the uppermost of the upper three non-contact sensors 52. If the upper and lower two parts detect the reference sign 51, they are identified as the third furnace group.

Further, if all the two lower non-contact sensors 52 detect the reference sign 51, they are identified as the right end of each furnace group, and the upper two of the lower two non-contact sensors 52 If only one reference mark 51 is detected, it is identified as the left end of each furnace group.
In this way, the installation location of the reference marker 51 can be identified by the combination of the number of reference markers 51 and the arrangement pattern. Since different reference position information is given to each installation location, when the non-contact sensor 52 detects the reference sign 51, the location information output from the position detection device at that time is the identified installation location. Is replaced with reference position information corresponding to the above, that is, position information determined for each kiln.

  In addition, this embodiment shows an example of this invention and this invention is not limited to this embodiment. For example, in the present embodiment, the reference sign 51 is installed in the vicinity of the trajectory of the mobile devices 21 to 25 and the non-contact sensor 52 is mounted on the mobile devices 21 to 25, but the reverse is also possible. That is, the non-contact sensor 52 may be installed in the vicinity of the trajectory of the mobile devices 21 to 25 and the reference sign 51 may be mounted on the mobile devices 21 to 25.

  In the present embodiment, the decoders (namely, position information output means) are mounted on all of the mobile devices 21 to 25. However, the decoder (namely, position information output means) is provided only for some of the mobile devices (for example, only the extruder 22). ) And position information may be obtained for other mobile devices using guided radio.

DESCRIPTION OF SYMBOLS 10 Coke oven 11-15 Furnace 14A-14E Kiln 21 Charcoal vehicle 22 Extruder 23 Bucket car 24 Fire extinguisher 25 Guide car 27 Dry fire extinguishing equipment 28 Wet fire extinguishing equipment 31-35 Rail 41 Absolute rotation angle detection device 42 Roller 51 Reference mark 52 Non-contact sensor C Red hot coke

Claims (8)

In the position detection device that detects the current position of the mobile equipment used for the operation of the coke oven,
A position information output unit that includes a decoder that is mounted on the mobile device and that measures a displacement amount from a reference position of the mobile device, and that outputs position information indicating a current position of the mobile device;
Error correction means for correcting an error in the position information of the mobile device output by the position information output means;
With
The error correction means includes
A reference sign installed at a predetermined position on or near the orbit of the mobile device;
A non-contact sensor mounted on the mobile device for detecting the reference mark;
When the reference sign is detected by the non-contact sensor, the position information of the mobile device output from the position information output means at that time is replaced with reference position information previously given to the reference sign. Position information replacement means;
A position detecting device for a coke oven mobile unit.   2. The coke oven mobile device position detection device according to claim 1, wherein the decoder is a rotation detection device that measures a rotation speed or a rotation angle of a roller that rotates as the mobile device moves.   The coke oven is provided with a furnace group in which a plurality of kilns are arranged in parallel, and the reference mark is arranged at an end of the furnace group and at least one of the kilns. Or the position detection apparatus of the moving machine of the coke oven of Claim 2.   The mobile machine is a charcoal vehicle for charging raw coal into the coke oven, an extruder for extruding coke from the coke oven, a bucket vehicle for transporting the coke to a dry fire extinguishing facility, and a fire extinguisher for transporting the coke to a wet fire extinguishing facility. The vehicle and at least one of a guide vehicle that guides the coke extruded from the coke oven to the bucket vehicle or the fire extinguisher. The position detection apparatus of the moving machine of description coke oven. When acquiring position information indicating the current position of the mobile device used for the operation of the coke oven, and performing various operations of the coke oven by moving the mobile device to a predetermined position based on the acquired position information,
While acquiring the position information by a position information output means provided with a decoder mounted on the mobile device and measuring a displacement amount from a reference position of the mobile device,
When a reference sign is set at a predetermined position on or near the orbit of the mobile device, and the reference sign is detected by a non-contact sensor mounted on the mobile device, the position information output means outputs at that time A method for detecting a position of a mobile unit in a coke oven, wherein the positional information of the mobile unit is replaced with reference position information given in advance to the reference mark to correct an error in the positional information of the mobile unit.   6. The coke oven mobile device position detection method according to claim 5, wherein the decoder is a rotation detection device that measures a rotation number or a rotation angle of a roller that rotates as the mobile device moves.   The said coke oven is provided with the furnace group formed by arranging several kilns in parallel, The said reference mark is arrange | positioned in the edge part of the said furnace group, and at least one of the said kiln, The claim 5 or Claim characterized by the above-mentioned. Item 7. A method for detecting a position of a mobile device of a coke oven according to Item 6.   The mobile machine is a charcoal vehicle for charging raw coal into the coke oven, an extruder for extruding coke from the coke oven, a bucket vehicle for transporting the coke to a dry fire extinguishing facility, and a fire extinguisher for transporting the coke to a wet fire extinguishing facility. 8. The vehicle according to claim 5, wherein the vehicle is at least one of a guide car that guides the coke pushed out of the coke oven to the bucket car or the fire extinguisher. 9. The coke oven mobile unit position detection method described.

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