JP2007261758A - Radio data transmission system of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a radio data transmission system of an elevator capable of extending data transmission distance in accordance with height of elevation of an elevator and transmitting radio data having large capacity stably at high speed. <P>SOLUTION: In this radio data transmission system of the elevator capable of transmitting a control signal and a state data to be exchanged between an elevator controller 10 installed in a building and a car controller 20 provided in a car 7 of the elevator elevating and lowering in a shaft 1 in the building by radio transmission, a communication interface and radio data transmission means 15, 21 are provided in the elevator controller 10 and the car controller 20, respectively, and a radio transmitting and receiving antenna constituted by connecting a plurality of leakage coaxial cables 12a, 12b, 12c through relay means 13a, 13b by cascade connection is connected with the radio data transmission means 15 of the elevator controller 10 and is laid so as to extend over distance of elevation and lowering of the car in the shaft 1. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an elevator wireless data transmission system that wirelessly transmits and receives various types of data between an elevator control device that controls an elevator and a car control device that is provided in an elevator car.

  Conventionally, in a general elevator data transmission system, a method of transmitting data between an elevator control device and a car by wire via a tail cord has been the mainstream. However, with the means using the tail cord, with the recent increase in the number of buildings and the increase in the amount of data transmission, the tail cord increases in diameter and weight, and the behavior of the tail cord accompanying the increase in the speed of the elevator There has been a problem of adversely affecting the ride quality of elevators. For this reason, development of a wireless data transmission system is underway.

The elevator wireless data transmission system is equipped with a wireless terminal device that controls the elevator hall car call registration button, current floor guidance display, service floor guidance display, etc., and relays data via the wireless terminal. A method of transmitting to a terminal or a control device (for example, Patent Document 1 and Patent Document 2) or a method of wireless transmission / reception using a leaky coaxial cable is proposed, and a leaky coaxial cable is used for high-speed and large-capacity wireless transmission. A method of applying a wireless LAN is also known.
JP 2001-151429 A JP 2002-348061 JP-A-2-66086

However, in the above-described elevator wireless transmission method,
(1) Since the wireless terminals are installed every few meters, the device cost increases. In addition, since data is relayed and transmitted through a plurality of wireless terminals, the data transmission delay time is increased, causing an actual operation of the elevator and a floor display delay of the car. In order to perform this correction, additional changes in hardware or software are required, which further increases the apparatus cost and the adjustment cost.
(2) In the method of switching by providing a plurality of optical wireless transceivers, highly directional radio wave transceivers or antennas on the hoistway side, if the directivity is too strong, the installation interval of the radio transceivers on the hoistway side can be widened. This eliminates the cost of the apparatus.
(3) In wireless transmission using a leaky coaxial cable, when wirelessly transmitting video images in a car or video signals from surveillance cameras in the car, the radio frequency band is insufficient, so high resolution can be achieved. Have difficulty.
(4) A leaky coaxial cable wireless LAN is a wireless device that uses the ISM band, which is an area that can be used without a license if the output is 10 mW or less in a radio frequency band near 2.4 GHz. Based on the Radio Law, it is necessary to obtain a technical standard conformity certification (technical suit) or construction design certification (certification) by combining a radio and an antenna, and every time the length of a leaky coaxial cable that becomes an antenna is different, New technical skills or certification must be obtained. In addition, since the frequency band to be used is relatively high and propagation attenuation is large, there is a problem that a distance (cable length) at which stable wireless transmission can be performed is limited.

  The present invention has been made in order to solve the above-described problem, and an elevator capable of extending a data transmission distance in accordance with the elevation height of the elevator and transmitting stable high-speed and large-capacity wireless data. An object of the present invention is to provide a wireless data transmission system.

  The invention of claim 1 wirelessly transmits control signals and state data exchanged between an elevator control device installed in a building and a car control device installed in an elevator car that moves up and down in a hoistway of the building A wireless data transmission system for an elevator that includes a communication interface and wireless data transmission means for each of the elevator control device and the car control device, and the wireless data transmission means of the elevator control device comprises at least one leaky coaxial cable. A wireless transmission / reception antenna is connected, and this wireless transmission / reception antenna is laid so as to extend over the lifting process of the car in the hoistway.

  The invention of claim 2 wirelessly transmits control signals and state data exchanged between the elevator control device installed in the building and the car control device installed in the elevator car that moves up and down in the hoistway of the building A wireless data transmission system for an elevator, in which an elevator controller and a car controller are each provided with a communication interface and wireless data transmission means, and a plurality of leaky coaxial cables are relayed to the wireless data transmission means of the elevator control apparatus A wireless transmission / reception antenna formed by cascade connection is connected via the means, and this wireless transmission / reception antenna is laid so as to extend over the lifting process of the car in the hoistway.

  The invention according to claim 3 wirelessly transmits control signals and state data exchanged between the elevator control device installed in the building and the car control device installed in the elevator car that moves up and down in the hoistway of the building. A wireless data transmission system for an elevator, in which an elevator controller is provided with a communication interface, signal conversion means, and wireless data transmission means, and a leaky coaxial cable is connected to the wireless data transmission means, and the leaky coaxial cable is connected to the hoistway. The signal conversion means converts the signal and the protocol in accordance with the wireless data transmission means, connects the signal conversion means and the wireless data transmission means by wire, and leaks the leakage. A coaxial cable is used as a wireless transmission / reception antenna.

  According to a fourth aspect of the present invention, in the elevator radio data transmission system according to the third aspect, there are a plurality of leaky coaxial cables used as radio transmission / reception antennas, and the plurality of leaky coaxial cables are used to move the elevator up and down. And at least a part of both of the adjacent leaky coaxial cables are overlapped with each other.

  According to a fifth aspect of the present invention, in the elevator wireless data transmission system according to the third or fourth aspect, the wireless data transmission means connected to the signal conversion means by wire has a bridge, router, or switching hub function. Is characterized in that it can be branched and extended.

  According to a sixth aspect of the present invention, in the elevator wireless data transmission system according to any one of the third to fifth aspects, the elevator control device transmits at least one or more wireless data transmission means according to the elevation height of the car. Wireless data transmission by enabling and prohibiting appropriate wireless data transmission means according to the elevation of the car by providing a means for storing the possible range and a function for permitting and prohibiting wireless transmission and reception in the wireless data transmission means It is characterized by enabling system switching.

  According to a seventh aspect of the present invention, in the elevator wireless data transmission system according to the sixth aspect, the wireless transmission of the two adjacent wireless data transmission means is within a predetermined range in accordance with the elevation height of the car. The wireless data transmission system can be switched by allowing both of them.

  According to an eighth aspect of the present invention, in the elevator wireless data transmission system according to any one of the third to seventh aspects, leaky coaxial cables having different lengths and corresponding wireless data transmission means are prepared in advance. A wireless transmission / reception antenna corresponding to the length of the hoistway is configured in combination and is laid in the hoistway.

  A ninth aspect of the present invention is the elevator wireless data transmission system according to any one of the second to eighth aspects, wherein the signal line wiring laying path between the wireless data transmission means is an elevator control device and hall equipment on each floor of the building. The wiring laying route of the connecting line between and at least partly overlaps.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to extend a data transmission distance according to the raising / lowering height of an elevator, the stable high-speed and large-capacity radio | wireless data can be transmitted.

  Embodiments of the present invention relating to an elevator wireless data transmission system will be described below with reference to the drawings. In the embodiments shown in the drawings, the same components are denoted by the same reference numerals, and redundant description thereof is omitted.

  FIG. 1 shows a first embodiment. FIG. 1 is a configuration diagram showing the overall configuration of an elevator. A machine room 2 is provided in an upper part of a hoistway 1 of a building, and a hoisting machine 3 is installed in the machine room 2. A main rope 6 is wound around. Both ends of the main rope 6 are led out into the hoistway 1, a car 7 is attached to an end on one end side, and a counterweight 8 is attached to an end on the other end side. The car 7 and the counterweight 8 are respectively attached. Is suspended in the hoistway 1 via the main rope 6.

  An elevator control device 10 is provided in the machine room 2, and a plurality of leaky coaxial cables 12a, 12b, and 12c are laid in the hoistway 1 as radio transmission / reception antennas. In addition, the elevator control apparatus 10 can also be installed in a hold door door portion of an elevator hall.

  The plurality of leaky coaxial cables 12a, 12b, and 12c are extended in series over the entire lifting process of the car 7 through relay means 13a and 13b including a duplexer, a distributor, a mixer, and a bidirectional amplifier. Cascade connection.

  The elevator control device 10 includes a wireless LAN access point, a wireless LAN adapter, a wireless modem, and the like that perform signal conversion processing on a control signal exchanged with the car 7 via a communication interface (not shown) and wirelessly transmit the signal bidirectionally. The wireless data transmission means 15 is connected, and this wireless data transmission means 15 is connected to the uppermost leaky coaxial cable 12 a in the hoistway 1 through the feeder line 16. And the termination resistor 17 is attached to the lower end side end part of the lowest leaky coaxial cable 12c used as the terminal of the raising / lowering process of the passenger car 7.

  The car 7 is equipped with a car control device 20 that performs overall control of devices such as a door control device, an indicator, and a destination floor registration button (not shown). The car control device 20 includes a wireless LAN access point, a wireless LAN adapter, and a wireless communication device that perform signal conversion processing on control signals exchanged with the elevator control device 10 via a communication interface (not shown) and wirelessly transmit the signals bidirectionally. A wireless data transmission means 21 such as a modem is connected. The wireless data transmission means 21 is connected to a car-side transmitting / receiving antenna 23 made of a dipole antenna, a leaky coaxial cable, or the like via a feeder line 22. The transmission / reception antenna 23 is attached to the side surface of the car 7, and its attachment position and angle can be adjusted.

  Hall devices such as car call buttons 25a, 25b, 25c, and 25d and indicators (not shown) are provided in the elevator halls on each floor of the building. The elevator control device 10 is connected via a connection line 26 to hall devices such as elevator hall car call buttons 25a, 25b, 25c, 25d and indicators of each floor via a communication interface (not shown).

  In such a configuration, the elevator control device 10 is generated in cooperation with the elevator hall car call buttons 25a, 25b, 25c, 25d and the destination floor registration button (not shown) of the car 7 or the security device (not shown). Based on the elevator car call signal, the hoisting machine 3 is driven to control the car 7 to land on a predetermined floor.

  During operation of the elevator, leaky coaxial cables 12a, 12b, 12c as radio transmitting / receiving antennas connected to the elevator control device 10 via the wireless data transmission means 15 and connected to the car control device 20 via the wireless data transmission means 21 Radio data such as control signals and status data is transmitted and received bidirectionally to / from the car-side transmitting / receiving antenna 23.

  Leaky coaxial cables 12a, 12b, 12c as radio transmission / reception antennas in the hoistway 1 are connected in series via relay means 13a, 13b including a duplexer, a distributor, a mixer, a bidirectional amplifier, and the like. The signals in the leaky coaxial cables 12a, 12b, and 12c are mutually amplified by the relay means 13a and 13b, and in this state, the radio signals are transmitted between the leaky coaxial cables 12a, 12b, and 12c of the radio transmission / reception antenna and the car-side transmission / reception antenna 23. Data is sent and received. A termination resistor 17 is provided at the lower end of the leaky coaxial cable 12c. Impedance matching with the radio transmission / reception antenna is performed by the termination resistor 17, and reflection and radiation of radio waves are suppressed.

  In the first embodiment, the leaky coaxial cables 12a, 12b, 12c as radio transmission / reception antennas are cascade-connected and extended by the relay means 13a, 13b in the hoistway 1, but the length depends on the length of the leaky coaxial cable. In the case of an elevator lifting / lowering process in which the attenuation of the electric field strength of the radio wave is not a practical problem for performing wireless data transmission, as shown in FIG. 2 as a second embodiment, one leak in the hoistway 1 A coaxial cable 12 is provided as a radio transmission / reception antenna, a wireless data transmission means 15 leading to the elevator control device 10 is connected to the single leaky coaxial cable 12, and a termination resistor 17 is attached to a terminal at the lower end of the leaky coaxial cable 12. It is good also as a structure.

  In this configuration, wireless data is transmitted and received bidirectionally between one leaky coaxial cable 12 and a transmission / reception antenna 23 made of a dipole antenna, a leaky coaxial cable or the like attached to the car 7.

  FIG. 3 shows a third embodiment. In this embodiment, the wireless data transmission means 15 is provided in the middle position of the elevator lifting / lowering process in the hoistway 1, and this wireless data transmission means 15 is connected to the elevator controller 10 via a communication interface (not shown). , RS-422, RS-485, Ethernet (registered trademark), and a signal line 27 compliant with the optical transmission standard.

  The wireless data transmission means 15 is connected via a feeder line 31 to a distributor 30 provided at a substantially intermediate position in the elevator up / down stroke. The distributor 30 is connected to a leaky coaxial cable 12a extending upward and a leaky coaxial cable 12b extending downward, and the leaky coaxial cables 12a and 12b constitute a transmission / reception antenna having a length over the up and down stroke. Termination resistors 17a and 17b are attached to the upper end of the leaky coaxial cable 12a and the lower end of the leaky coaxial cable 12b, respectively.

  As in the case of the first embodiment, the car control device 20 provided in the car 7 performs a signal conversion process on a control signal exchanged with the elevator control device 10 via a communication interface (not shown). It is connected to a wireless data transmission means 21 comprising a wireless LAN access point, a wireless LAN adapter, a wireless modem, etc. for wireless transmission in both directions. The wireless data transmission means 21 is connected to a car-side transmitting / receiving antenna 23 made of a dipole antenna, a leaky coaxial cable, or the like via a feeder line 22.

  In this configuration, since the elevator control device 10 is branched and connected to both leaky coaxial cables 12a and 12b constituting the transmission / reception antenna via the distributor 30, the end point in the case where there is one leaky coaxial cable. Compared to the attenuation of the electric field strength of the radio wave on the resistor side, the attenuation of the electric field strength of the radio wave on the terminating resistors 17a and 17b side of the leaky coaxial cables 12a and 12b is reduced.

  Therefore, the length of the transmitting / receiving antenna provided in the hoistway 1, that is, the length of the leaky coaxial cables 12a and 12b can be extended in consideration of the attenuation of the electric field strength of the radio wave, so that stable wireless data transmission can be performed. it can.

  Next, a fourth embodiment will be described with reference to FIGS.

  A signal conversion means 34 is connected to the elevator control device 10 via a communication interface (not shown). A plurality of, for example, three signal lines 35a, 35b, and 35c compliant with RS-232, RS-422, RS-485, Ethernet (registered trademark), and optical transmission standards are derived from the signal conversion means 34. .

  In the hoistway 1, three wireless data transmission means 15a, 15b, 15c corresponding to the respective signal lines 35a, 35b, 35c are provided. These wireless data transmission means 15a, 15b, 15c are connected to leaky coaxial cables 12a, 12b, 12c as wireless transmission / reception antennas extending downward from the wireless data transmission means 15a, 15b, 15c, respectively. Termination resistors 17a, 17b, and 17c are attached.

  The plurality of leaky coaxial cables 12a, 12b, and 12c are arranged in the hoistway 1 so as to extend over the entire lifting process of the car 7 in a stepwise manner while sequentially shifting their positions. The signal lines 35a, 35b and 35c are connected to the wireless data transmission means 15a, 15b and 15c of the corresponding leaky coaxial cables 12a, 12b and 12c.

  In the present embodiment configured as described above, the elevator control device 10 transmits a signal to the signal conversion means 34 by wire or by a transmission command, and synchronizes transmission / reception of data transmission of the wireless data transmission means 15a, 15b, 15c. Control or switch radio carrier frequency settings.

  By the way, when the hoisting machine 3 is operated at a low speed and the landing position detecting sensor (not shown) that detects the landing position of the car 7 detects the landing position of the car 7, the height of the car 7 is raised and lowered. There is an elevator having a function of storing the above in a memory such as an EEPROM (not shown) of the elevator control device 10 and adjusting the influence of the expansion and contraction of the main rope 6 due to initial elongation, secular change, and summer / winter temperature difference.

  In the case of such an elevator, in this embodiment, when the landing position detection sensor detects the landing position of the car 7, the leaky coaxial cables connected to the wireless data transmission means 15a, 15b, and 15c, respectively. 12a, 12b, 12c and a combination that allows stable wireless data transmission between the car 7 and the elevation height are stored in a memory such as an EEPROM (not shown) of the elevator controller 10 for data transmission. The data is used for switching determination of the wireless data transmission means 15a, 15b, 15c used for transmission / reception.

  At the time of elevator inspection operation or normal operation, the elevator control device 10 selects the appropriate wireless data transmission means 15a, 15b, 15c according to the elevation height of the car 7, as shown in FIG. A wireless transmission permission signal and a wireless transmission permission command are output to the wireless data transmission means 15a, 15b, and 15c. When a predetermined time elapses or the position of the car 7 exceeds a predetermined range, the wireless data transmission means 15a that is no longer used among the wireless data transmission means 15a, 15b, 15c. , 15b, 15c, the wireless transmission permission signal is turned off, or a wireless transmission prohibition command is output to stop or suspend wireless data transmission. Termination resistors 17a, 17b, and 17c provided at the respective ends of the leaky coaxial cables 12a, 12b, and 12c perform impedance matching with the wireless transmission / reception antenna to suppress radio wave reflection and radiation.

  According to the present embodiment, the wireless data transmission means 15a, 15b, 15c corresponding to the elevation height of the car 7 is selected and used, and the wireless data transmission means 15a, 15b, 15c that are clearly unnecessary are wirelessly used. Since data transmission is stopped or paused, unnecessary transmission / reception of radio waves in the hoistway 1 is prevented, and the influence of external noise on the wireless data transmission means 15a, 15b, 15c is reduced, and stable wireless data transmission of an elevator It can be performed.

  Next, a fifth embodiment of the present invention will be described with reference to FIG.

  In this embodiment, at least one function of a bridge, a router, and a switching hub is added to the wireless data transmission means 15a, 15b, and 15c provided in the hoistway 1, and RS-232, RS-422, The signal transmitted from the signal lines 35a, 35b, and 35c conforming to RS-485, Ethernet (registered trademark), and optical transmission standards can be branched and extended using the bridge, router, and switching hub functions.

  That is, one signal line 35a derived from the signal conversion means 34 is connected to the uppermost wireless data transmission means 15a in the hoistway 1, and the signal line 35b branched from the wireless data transmission means 15a is the hoistway 1. The signal line 35c branched from the wireless data transmission means 15b is connected to the lowermost wireless data transmission means 15c in the hoistway 1.

  During an elevator inspection operation or a normal operation, the elevator control device 10 selects appropriate wireless data transmission means 15a, 15b, 15c according to the elevation height of the car 7, and the selected wireless data transmission means 15a, 15b. , 15c is permitted for wireless transmission. It is also possible to add a network device power supply function to the wireless data transmission means 15a, 15b, 15c. In this case, the power supply can be supplied and received by the signal lines 35a, 35b, 35c, so that the power supply line can be omitted. .

  According to the present embodiment, the laying distance of the signal line can be reduced, and if the network device power supply function is added to the wireless data transmission means 15a, 15b, 15c, the number of signal lines can be reduced, and the wireless data transmission means. The layout design and construction of 15a, 15b, 15c are facilitated.

  Next, a sixth embodiment of the present invention will be described with reference to FIG.

  In this embodiment, as in the case of the fourth embodiment, a signal conversion means 34 is connected to the elevator control device 10, and a plurality of signal lines 35 a, 35 b, 35 c are derived from this signal conversion means 34. Yes. In the hoistway 1, a plurality of wireless data transmission means 15a, 15b, 15c corresponding to the respective signal lines 35a, 35b, 35c are provided, and leakages extending downward to the wireless data transmission means 15a, 15b, 15c, respectively. Coaxial cables 15a, 15b, and 15c are connected, and termination resistors 17a, 17b, and 17c are attached to the terminals on the lower ends of the leaky coaxial cables 15a, 15b, and 15c, respectively.

  In the case of the sixth embodiment, a lower end side of the upper leaky coaxial cable 12a, that is, a part on the terminating resistor 17a side, and an upper end side of the intermediate leaky coaxial cable 12b, that is, the radio data transmission means 15b side. A part of the coaxial cable 12b is overlapped with each other, and the lower part of the leaky coaxial cable 12b in the middle part, that is, a part on the terminal resistor 17b side, and the upper part of the lower part of the leaky coaxial cable 12c, that is, the wireless data transmission means 15c. It arrange | positions so that a part of side may adjoin and may mutually overlap. Then, the wireless data transmission means 15a, 15b, 1c corresponding to the elevation height of the car 7 is selected, and wireless data transmission / reception is performed using the selected wireless data transmission means 15a, 15b, 15c.

  The leaky coaxial cables 12a, 12b, 12c laid in the hoistway 1 have strong electric field strength at the ends on the wireless data transmission means 15a, 15b, 15c side, and electric fields at the ends on the termination resistors 17a, 17b, 17c side. The strength tends to be unstable. However, according to this embodiment, the leaky coaxial cables 12a, 12b, and 12c adjacent to each other include a region on the terminal resistor side where the electric field strength of one leaky coaxial cable is likely to be unstable, and the other leaky coaxial cable. The area on the side of the wireless data transmission means having a strong electric field strength overlaps with each other so that stable wireless data transmission can be performed regardless of the elevation height of the car 7.

  Next, a seventh embodiment of the present invention will be described with reference to FIG.

  In this embodiment, as in the case of the sixth embodiment, the signal conversion means 34 is connected to the elevator control device 10, and one signal line 35 a derived from the signal conversion means 34 is connected to the hoistway 1. The signal line 35b branched from the wireless data transmission means 15a is connected to the intermediate wireless data transmission means 15b in the hoistway 1 and branched from the wireless data transmission means 15b. The signal line 35c connected to the lower wireless data transmission means 15c in the hoistway 1 is connected to these wireless data transmission means 15a, 15b and 15c, respectively, and leaky coaxial cables 12a, 12b and 12c extending downwardly. Terminating resistors 17a, 17b, and 17c are attached to the terminals on the lower ends of the leaky coaxial cables 12a, 12b, and 12c, respectively. To have.

  As in the case of the seventh embodiment, the leaky coaxial cables 12a, 12b, and 12c are the lower end side of the upper leaky coaxial cable 12a, that is, a part on the terminal resistor 17a side, and the upper end of the intermediate leaky coaxial cable 12b. Side, that is, a part on the side of the wireless data transmission means 15b are arranged in close proximity to each other, the lower end side of the leaky coaxial cable 12a in the middle part, that is, a part on the terminal resistor 17b side, and the lower part of the leaky coaxial cable 12c. Are arranged so as to be close to each other and overlap with each other on the wireless data transmission means 15c side.

  Then, the wireless data transmission means 15a, 15b, 1c corresponding to the elevation height of the car 7 is selected, and wireless data transmission / reception is performed using the selected wireless data transmission means 15a, 15b, 15c.

  Also in the present embodiment, as in the case of the seventh embodiment, the adjacent leaky coaxial cables 12a, 12b, and 12c are arranged on the termination resistor side where the electric field strength of one of the leaky coaxial cables tends to become unstable. Since the area and the area on the wireless data transmission means side where the electric field strength of the other leaky coaxial cable is strong overlap each other, stable wireless data transmission can be performed regardless of the elevation height of the car 7 Can do.

  Next, an eighth embodiment of the present invention will be described with reference to FIG.

  In this embodiment, a signal conversion means 34 is connected to the elevator control device 10, and one signal line 35 a derived from the signal conversion means 34 is connected to the upper wireless data transmission means 15 a in the hoistway 1. The signal line 35b branched from the wireless data transmission means 15a is connected to the intermediate wireless data transmission means 15b in the hoistway 1, and the signal line 35c branched from the wireless data transmission means 15b is connected to the lower part in the hoistway 1. To the wireless data transmission means 15c.

  Leaky coaxial cables 12a, 12b, and 12c are connected to the wireless data transmission means 15a, 15b, and 15c via feeder lines 31a, 31b, and 31c, respectively, and lower ends of these leaky coaxial cables 12a, 12b, and 12c. Termination resistors 17a, 17b, and 17c are attached to the terminals on the side.

  A plurality of leaky coaxial cables 12a, 12b, and 12c are prepared in advance, from which leaky coaxial cables 12a, 12b, and 12c having an appropriate length are selected, and the selected leaky coaxial cables 12a, 12c, A combination of 12b, 12c, wireless data transmission means 15a, 15b, 15c and feeders 31a, 31b, 31c constitutes a wireless transmission path having a length corresponding to the elevator lifting / lowering process in the hoistway 1.

  In the implementation of this embodiment, technical standards conformity in advance for each combination of leaky coaxial cables 12a, 12b, 12c of different lengths, feeders 31a, 31b, 31c and wireless data transmission means 15a, 15b, 15c. Proof (technical aptitude) or construction design certification (authentication) is obtained, and wireless transmission lines are appropriately combined with leaky coaxial cables 12a, 12b, 12c of different lengths so as to have an appropriate length corresponding to the hoistway 1. Configure.

  In this case, all of the leaky coaxial cables 12a, 12b, and 12c may have different lengths, or a combination of a leaky coaxial cable having the same length and a leaky coaxial cable having a different length. Then, each leaky coaxial cable 12a, 12b, 12 is laid in the hoistway 1 while being shifted in stages so that a part of the upper part and the lower part of the leaky coaxial cables 12 and 12 are close to each other, and the amount of overlap is adjusted. Then, the terminal resistor 17c side of the leaky coaxial cable 12c that is the end of the wireless transmission path is bent so as not to affect the formation of the wireless transmission path with the car 7.

  According to this embodiment, the leaky coaxial cables 12a, 12b, 12c, the feeder lines 31a, 31b, 31c, and the wireless data transmission means 15a, 15b that have acquired technical standard conformity certification (technical suitability) or construction design certification (authentication) in advance. , 15c constitute a radio transmission path, so that it is possible to reduce radio wave law application confirmation work for each hoistway 1 having a different length.

  In the embodiment shown in FIG. 9, signal lines 35a, 35b, 35c for sequentially connecting the elevator control device 10 and the wireless data transmission means 15a, 15b, 15c, and car call buttons 25a for the elevator halls on each floor. 25b, 25c, 25d and a hall device such as an indicator (not shown) are arranged so as to be as close as possible to the connection line 26 for connecting to the elevator control device 10. In other words, the other portions of the connection line 26 other than the branch lead-out portion are wired so as to follow the signal lines 35a, 35b, and 35c, that is, overlap.

  According to this configuration, it is possible to reduce the cost of fixing and curing the wiring and effectively use the space in the hoistway 1 as compared with the case where the connection line 26 and the signal lines 35a, 35b, and 35c are individually wired. be able to.

Explanatory drawing which shows the radio | wireless data transmission system which concerns on the 1st Embodiment of this invention. Explanatory drawing which shows the wireless data transmission system which concerns on the 2nd Embodiment of this invention. Explanatory drawing which shows the radio | wireless data transmission system which concerns on the 3rd Embodiment of this invention. Explanatory drawing which shows the radio | wireless data transmission system which concerns on the 4th Embodiment of this invention. 4 is a timing chart of wireless data transmission means switching in the transmission system. Explanatory drawing which shows the radio | wireless data transmission system which concerns on the 5th Embodiment of this invention. Explanatory drawing which shows the radio | wireless data transmission system which concerns on the 6th Embodiment of this invention. Explanatory drawing which shows the radio | wireless data transmission system which concerns on the 7th Embodiment of this invention. Explanatory drawing which shows the radio | wireless data transmission system which concerns on the 8th Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Hoistway 2 ... Machine room 3 ... Hoisting machine 6 ... Main rope 7 ... Ride car 10 ... Elevator control device 12.12a. 12b. 12c ... Leaky coaxial cable 13a. 13b. Relay means 15.15a. 15b. 15c ... Wireless data transmission means 16 ... Feed line 17.17a. 17b. 17c ... Terminating resistor 20 ... Car control device 21 ... Wireless data transmission means 22 ... Feed line 23 ... Car side transmitting / receiving antenna 25a. 25b ... Car call button 26 ... Connection line 27 ... Signal line 30 ... Distributor 31.31a. 31b ... feed line 34 ... signal conversion means 35a. 35b. 35c ... Signal line

Claims (9)

Elevator wireless data transmission system that wirelessly transmits control signals and status data exchanged between the elevator control device installed in the building and the car control device installed in the elevator car that moves up and down in the hoistway of the building Because
The elevator control device and the car control device are each provided with a communication interface and wireless data transmission means, and a wireless transmission / reception antenna comprising at least one leaky coaxial cable is connected to the wireless data transmission means of the elevator control device. A wireless data transmission system for an elevator, wherein the elevator is laid so as to extend over the lifting process of a car in the hoistway. Elevator wireless data transmission system that wirelessly transmits control signals and status data exchanged between the elevator control device installed in the building and the car control device installed in the elevator car that moves up and down in the hoistway of the building Because
Wireless transmission / reception in which an elevator control device and a car control device are each provided with a communication interface and wireless data transmission means, and a plurality of leaky coaxial cables are cascade-connected to the wireless data transmission means of the elevator control device via a relay means. An elevator wireless data transmission system comprising: an antenna connected; and the wireless transmission / reception antenna is laid so as to extend over a lifting process of a car in a hoistway. Elevator wireless data transmission system that wirelessly transmits control signals and status data exchanged between the elevator control device installed in the building and the car control device installed in the elevator car that moves up and down in the hoistway of the building Because
The elevator control device is provided with a communication interface, signal conversion means, and wireless data transmission means, and a leaky coaxial cable is connected to the wireless data transmission means so that the leaky coaxial cable extends over the lifting process of the car in the hoistway. The signal conversion means converts the signal and protocol according to the wireless data transmission means, the signal conversion means and the wireless data transmission means are connected by wire, and the leaky coaxial cable is used as a wireless transmission / reception antenna. Elevator wireless data transmission system. In the elevator wireless data transmission system according to claim 3,
There are a plurality of leaky coaxial cables used as radio transmission / reception antennas, and the plurality of leaky coaxial cables are arranged along the raising / lowering process of the car, and at least a part of both of the leaky coaxial cables is adjacent to each other. An elevator wireless data transmission system characterized by wrapping. In the elevator wireless data transmission system according to claim 3 or 4,
An elevator wireless data transmission system, wherein the wireless data transmission means connected to the signal conversion means by wire has a bridge, router, or switching hub function and is capable of branching and extending signals. In the elevator wireless data transmission system according to any one of claims 3 to 5,
The elevator control device is provided with a means for storing a transmission possible range of at least one wireless data transmission means corresponding to the elevation height of the car, and a function for permitting and prohibiting wireless transmission / reception in the wireless data transmission means. A wireless data transmission system for an elevator, which enables switching of a wireless data transmission system by permitting and prohibiting wireless transmission of appropriate wireless data transmission means corresponding to the height of the elevator. The elevator wireless data transmission system according to claim 6,
The wireless data transmission system can be switched by allowing wireless transmission of two adjacent wireless data transmission means between a predetermined range according to the elevation height of the car. Elevator wireless data transmission system. The elevator wireless data transmission system according to any one of claims 3 to 7,
Leakage coaxial cables of different lengths and corresponding wireless data transmission means are prepared in advance, and a combination of these constitutes a wireless transmission / reception antenna corresponding to the length of the hoistway and is laid in the hoistway Elevator wireless data transmission system. The elevator wireless data transmission system according to any one of claims 2 to 8,
The wiring laying route of the signal line between the wireless data transmission means is at least partially overlapped with the wiring laying route of the connection line between the elevator control device and the hall equipment on each floor of the building. Elevator wireless data transmission system.

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