JPH0417006A - Device for detecting position of unmanned carrier - Google Patents

Abstract

PURPOSE:To efficiently guide an unmanned carrier and, at the same time, to make the unmanned carrier economical by reducing the working cost by burying a non-contact type information storing body after housing the information storing body in a cylindrical case and sealing the cylindrical case. CONSTITUTION:A non-contact type information storing body which uses a medium of light, magnetism, radio waves, etc., for an electric power or signal feeding means is constituted by packaging a controlling section 10, storing section 6, oscillating section 13, power source section 4, transmitting/receiving section 1, etc., on a printed wiring board. Such storing body is housed in a cylindrical case and the space between the board and case is sealed with a resin so as to form an sealed body. The sealed body is buried at each detecting point of the running path of an unmanned carrier and a reader which reads the signal of the sealed body is mounted on the unmanned carrier so that the unmanned carrier can be driven by identifying the reader and the reading signal of the reader on the carrier. Therefore, the unmanned carrier can be guided efficiently and, at the same time, the reliability and safety of the carrier can be improved, because the storing body is not damaged.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to an unmanned transportation system that uses a non-contact information storage device that can be used as a non-contact ID card and a non-contact memory card to guide an automatic guided vehicle. This invention relates to a vehicle location detection device.

[Conventional technology]

Conventionally, in the automatic driving system of automatic guided vehicles, electromagnetic induction wires are buried in the road surface, and the strength of the magnetic field generated by passing low-frequency current through the guide wires is applied to the guided vehicle. It is detected by a pair of attached pickup coils, the strength of the magnetic field is converted into an induced electromotive force, and the voltage difference detected by the left and right coils is determined by the control unit as the course of the conveyance vehicle.
There are various methods for steering control, such as an electromagnetic induction wire method, an optical reflective tape method, and a magnetic tape method.

The electromagnetic guide wire method is used as a ground point inspection means for branching/merging travel routes, turning, acceleration/deceleration/stop positions, station positions, etc. in such automatic guided vehicles.

A common method is to allocate multiple different frequencies according to a fixed rule, and with optical or magnetic tape methods, a mark reading method is common, in which the number of marks is counted by reading the marks and the point is detected using a relative address. be.

[Problem to be solved by the invention]

The conventional 'FIL magnetic @ magnetically conductive force conductor method requires the burying of guide wires corresponding to multiple frequencies, and there is a drawback that a large amount of cost is required for the guide device and burying costs.
It is also damaged in the case of mark reading p method.

There is a point where false detections occur due to dirt, etc.

On the other hand, in recent years, contactless cards have appeared as information storage rods, and have been made into various products.It is also possible to use this card for spot detection of automatic guided vehicles, but this card is
Because the card is shaped like an IS standard magnetic card, an ISO standard IC card, or a tag, if you try to embed this card in the route of an automated guided vehicle, it will cause damage to the concrete floor of the route. However, there is a drawback that it takes a lot of time and money for the chisel work and the Enoki repair work after burying. become incapable.

Moreover, there is a risk that the transport vehicle may overturn its stop position or station position, resulting in a serious accident.

The present invention has been made with the above-mentioned points in mind, and an object of the present invention is to provide a system for detecting the location of an excreta transport vehicle, which can be performed at a low cost with only departmental construction work, and is highly reliable and safe.

[Means to solve the problem]

In order to solve the above problems, the automatic guided vehicle point detection device of the present invention includes a control section, a storage section 1, an oscillation section, an electric conduction section, and a transmitting/receiving section mat on a printed wiring board, so that light, consideration, A non-contact system that uses a medium such as radio waves as a means of gravity supply and signal.
Construct a report body, store the memory body in a cylindrical case,
The substrate and the case are completely sealed with paulownia resin to form a sealed upper body, and the sealed body is used for branching, merging, and turning in the travel path of the automatic guided vehicle.

A device is installed in each detecting hole for acceleration/deceleration/stop position, station position, etc., and is equipped with a reader of the signal from the storage body in the transport vehicle and one open side device that identifies the removal signal of the reader and drives the progress transport vehicle. It was established.

[For production]

In the automatic guided vehicle location detection device of the present invention configured as described above, a non-contact information storage body is housed in a cylindrical case and sealed with resin to form a sealed body. Since the body is buried at each detection point, the joining conveyance vehicle can be efficiently guided, and the memory body is reinforced and will not be damaged, improving reliability and safety.

〔Example〕

One embodiment will be described with reference to FIGS. 1 to 5.

First, FIG. 4, which shows a circuit block diagram of a non-contact type information storage body, will be explained.

(1) is a transmitter/receiver section consisting of a power receiving coil/I/ (2) with a core made of a high-magnetic metal for power supply and a transmitting antenna (3).

(4) is the power supply part connected to the power receiving coil /L/ (27).

21 yen capacitors (5), (6) and 21 yen diode (7).

From (8), a half-wave multiplier-:voltage rectifier circuit is constructed, and the rectified one-current power supply is supplied to each section described below.

(9) is a storage unit that stores information such as a unique verification code;
Q is a control unit consisting of a generation conversion circuit (1υ) and a modulation circuit (la), and the generation and conversion circuit 0υ reads information from the storage unit (9) and converts the WIJ information into a transmission code. It consists of a transmission code conversion circuit, and a modulation circuit (
+”lr modulates the transmission code onto a radio carrier wave.

(1:N is an oscillation section consisting of a carrier wave oscillation circuit (14) for transmitting radio waves consisting of a gate 1 IC and a crystal oscillator 0.

The control units (g, o), storage unit (9), and one oscillation circuit (14) can be integrated into one chip using standard cells and gate arrays, and are mounted on a printed wiring board as shown in FIG. The control unit (IQ+, storage unit (9) 1
A gate array α-ON J that integrates the oscillation circuit 04) into a single chip, a power supply section (4), a receiving coil (2), and a transmitting antenna (
3) High-density mounting of 1ω crystals.

Next, as shown in FIGS. 2 and 3, the non-contact information storage body U) shown in FIG. The case 0゜itl & is sealed with epoxy thread or silicone horse chestnut resin used for pricking the bare chip, closed with a covern ◇ made of the same material as the case σ, and heated or ultrasound is applied to the case ([! ! and cover V are fused together, and the storage body 08) is hermetically sealed inside the q cases to form a sealed body ezy =.

Next, as shown in FIG. 1, detection points A, B, and C on the actual cargo transport section of the travel path (c) of the automatic guided vehicle (2).

Drill holes in D and E using only a tool such as an electric drill,
A sealing body (a) is buried in each.

Detection points AIi loading point, BI''i turning point, C
is the acceleration point, ]] is the deceleration point, and Eid'1iaui & point.

The transport vehicle is equipped with a pick-up machine and a control machine (a),
A device 12Lj) reads the signal from the memory body α■ of each sealed object.
, and the control number is identified by the control pole (a), and control 1 such as starting/stopping, shifting, steering, etc. of the conveyance vehicle @ is performed at each absolute zone.

〔Effect of the invention〕

Since the present invention is configured as described above, it produces the effects described below.

The non-contact information storage body 9 is housed in a cylindrical case 09, and is sealed with resin (4) to form a sealed body (a). Because they are buried at each detection point A, B, C, etc. required for transport control, it is possible to efficiently guide the transport vehicle, and when burying the sealing body (A), it is possible to ) has a cylindrical shape, so it can be drilled and buried in the cylinder with a simple tool such as an electric drill, which shortens the construction period, reduces construction costs, and has a large economic effect.

Furthermore, if a conventional card is buried in a trench as it is, there is a risk that the card will be damaged by the transport vehicle J, resulting in a serious accident. It has great environmental friendliness and strength, and can improve reliability and ensure safety.

[Brief explanation of drawings]

The drawings show one embodiment of the automatic guided vehicle point detection device of the present invention, and FIG. 1 is an overall front view, FIG. 2 and FIG. 4 and 5 are a circuit block diagram of the information storage device and a front view of the wiring board. (1)・Transmission/reception unit, (4)・Power supply unit, (9)・Storage unit,
(10) Control unit, α ■ Oscillator unit, tlljJ/printed wiring board, α frame non-contact type information storage body, (1 case, (a) resin. So... sealing body, threat...・Automated guided vehicle, (foundation) ・Travel road,
(c) ・Sugiya Tsukimata Sugiya, v) ・Ministry of System-1
Machine.

Claims (1)

[Claims] (1) A non-contact information storage device in which a control unit, storage unit, oscillation unit, power supply unit, transmitter/receiver unit, etc. are mounted on a printed wiring board and media such as light, magnetism, and radio waves are used as a means of power supply and signal transmission. , the storage body is housed in a cylindrical case, and the space between the substrate and the case is sealed with resin to form a sealed body;
The sealing body is embedded in each detection point such as branching/merging, turning, acceleration/deceleration/stop position, station position, etc. on the travel path of the automatic guided vehicle, and the guided vehicle is equipped with a reader of the signal from the storage body and the detection point. An automatic guided vehicle point detection device including a controller that identifies a read signal from a reader and drives the guided vehicle.