JPS63288893A - Data transmitter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a remote control unit for remotely controlling a mobile aircraft;
The present invention relates to a data transmission device in which work management data generated during movement is inputted using a single portable data input device.

[Prior Art] Warehouses that store heavy goods such as steel materials, rolled coils, rails, and construction materials are equipped with large ceiling-traveling cranes for carrying in and out.

Normally, in such a large overhead traveling crane, a driver's cab is installed in the moving crane itself, and the operator operates from this cab, or a portable remote controller is installed and the remote controller is operated. Operated by an operator.

On the other hand, in recent years, it has become common for the quantities and types of the above-mentioned items stored in warehouses to be centrally managed using computers or the like. Therefore, when operating a crane to bring goods into or out of a warehouse, a code that identifies the goods, processing information as to whether the goods were brought in or taken out, and the quantity and quantity of the goods are recorded. Accurate inventory management is possible by inputting from a computer terminal.

In addition, in recent years, crane operators have become more multi-skilled, and 11 computer terminals necessary for inventory management are often placed in the crane operator's cab, and crane operators use the computer terminals while operating the crane. They perform tasks such as looking at screen data, moving items, and inputting movement information.

[Problems to be Solved by the Invention] However, even in warehouses where cranes are used to carry goods in and out, and where inventory is managed using computers, as a means of further rationalization, it is necessary to have crane operators on the floor. There is a need for work styles and equipment that allow the crane to be used for other tasks when not operating the crane.

The present invention was made in view of these circumstances,
The purpose of this is to integrate the portable remote control device for operating the crane from the floor and the data input device for inputting work management data into one unit, so that mobile machine operation and data input operation can be performed on the same device. It can be executed with −
It is an object of the present invention to provide a data transmission device that enables efficient warehouse management work by human operators.

[Means for Solving the Problems] As shown in FIG. 1, the data transmission device of the present invention is composed of a portable data input device a and a mobile device side data receiving device mounted on a mobile device. , portable data entry @＊
a is a remote control unit C for inputting operation information for remotely controlling the mobile aircraft, a data input unit d for inputting work management data generated as the mobile aircraft moves, and input operation information and work. It has a transmission control unit e that incorporates management data into a transmission frame of a time-divided digital signal and outputs it, and a transmitter f that wirelessly outputs the transmission frame output from this transmission control unit, and a mobile device side data reception. The device includes a receiver Q that receives the transmission frame wirelessly output from the transmitter f of the portable data input unit [a], and a receiver Q that receives the transmission frame wirelessly output from the transmitter f of the portable data input unit an error detector i that reports the judgment result of the error detector; and a data output that sends only the work management data that the error detector determines is correct to an external data processing device. Part j
It has

[Effect]

In a data transmission device configured in this way, a remote control section and a data input section are built into the portable data input device, and the input operation information and work management data are built into the transmission frame and transmitted wirelessly. The data is output, received by a receiver of a mobile device-side data receiving device mounted on the mobile device, and sent to the mobile device and an external data processing device. Therefore, immediately after executing a movement operation of the mobile body, the operator can use the same device to input work management data generated in conjunction with the movement of the mobile body.

As a result, remote control and data entry work can be efficiently performed by human operators, and since the operators are on the floor, they can do other tasks when not working with the crane, making it even more streamlined. It can be achieved.

[Example] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 is a schematic diagram showing a warehouse management system using the data transmission device of the embodiment. Rails la and 1b are laid near the ceiling of the third storage building, and the crane 2 moves on these rails 1a and Ib.

The crane 2 is equipped with a data receiving device 3 on the mobile aircraft side, and this data receiving bag [3 on the mobile aircraft side] is connected to the data processing device @ 5 via the transmission line 4, and is also used to move the crane 2 or It is connected to a control panel 7 that drives and controls a motor for hoisting a wire of a hook 6 for hoisting an article.

The data processing device 5 is connected to a host computer 52 via a transmission path 51 such as guided radio, and relays data exchange between the mobile device side data receiver 3 and the host computer 52r1, and also receives instruction information from the host computer 52. It is displayed on the electronic display panel 53.

The operator 8 on the floor of the warehouse looks at the work instructions displayed on the electronic display panel 53, operates the portable data input device 9 hanging from his shoulder, moves the goods, and manages the work. Enter data.

In addition, the data processing bag H5, the transmission line 51. Host computer 52. The electric display panel 53 is an existing product or a product that can be constructed using conventional technology.

Figures 3(a) and 3(b) show the portable data input section M.
FIG. 9 is a front view and a plan view showing FIG. A data input section 13 consisting of a keyboard 11 and a display section 12, and a remote control section 15 in which various operation buttons 14 for operating the crane 2 are arranged are provided on the top surface of the box-shaped housing 10. There is. Furthermore, a battery case 16 is attached to the side surface of the housing 10 to house a battery that supplies driving power to each electronic component.

The operation buttons 14 include, for example, operation buttons for moving the crane 2 in north, south, east, and west directions, operation buttons for hoisting and lowering the wire of the hook 6, and an emergency stop button.

As shown in the fourth factor, the keyboard 11 of the data input section 13 includes character keys for inputting work management data such as codes for identifying articles and quantity of articles, and various functions for indicating types of data such as loading/unloading. A key is placed. Further, the display section 12 is formed of, for example, a liquid crystal display element, and displays data input using the character keys of the keyboard 11 and various types of data input using the function keys over a plurality of digits.

FIG. 5 is a block diagram showing the portable data input device 9. As shown in FIG. Work management data input to a data input section 13 consisting of a keyboard 11 and a display section 12 is input to a transmission control section 17 consisting of a microcomputer. Operation information from each operation button 14 of the remote control unit 15 is also input to the transmission control unit 17 . The transmission control section 17 incorporates the input work management data and operation information into a digital transmission frame and sends it to the output signal modulation section 18 .

The output signal modulator 18 converts the input transmission frame into a frequency modulated (FSK modulated) signal and sends it to the transmitter 19. The transmitter 19 wirelessly outputs the frequency modulated signal.

Note that a driving voltage Vo is supplied to each of the above-mentioned electronic components from a power circuit 22 connected to a battery 20 housed in a battery case 16 via a power switch 21.

In addition, if the voltage of the battery 20 drops below the specified level due to long-term use, the LE installed on the remote control unit 15 will
The warning light 23 consisting of D lights up.

FIG. 6 is a block diagram showing the mobile body side data receiving device 3 mounted on the crane 2. As shown in FIG. In the figure, 24 is a receiver that receives the frequency modulated signal wirelessly output from the transmitter 19 of the portable data input unit [9;
The frequency modulated signal received by the remote control signal demodulator 25
and data signals [1] are input to part 26 and converted into the original transmission frame, respectively. Remote control signal demodulator 25
The transmission frame outputted from the next operation signal output section 27
Only the operation information is extracted, converted into a control signal, and input to the IIIll board 7 of the crane 2. The control I panel 7 drives and controls each drive motor 28 that drives the crane 2 and the hook 6 based on each input control signal.

Further, the error detection section 29 detects whether or not there is a transmission error in the remote control signal and the operation information included in the transmission frame output from the demodulation section 25, and if an error is detected in the operation information, The control signal output from the operation signal output section 27 is cut off.

Similarly, from the transmission frame outputted from the data signal *a section 26, only the transmission data information including the work management data is extracted by the data output section 30, and is transmitted as it is to the data processing device 5 via the transmission path 4. Further, the error detection section 31 detects whether or not there is a transmission error in the transmission data information included in the transmission frame output from the data signal demodulation section 26, and if an error is detected in the data, the data output The data output from the unit 30 is cut off.

In addition, the inspection results of the error detection section 31 are transmitted to the lamp drive circuit 32.
sent to. The lamp drive circuit 32 lights a green lamp 33a as an error alarm if the test result is good, and lights a red lamp 33b as an error alarm if the test result is bad. Note that this lamp 33a
, 33b are attached to the lower side of the crane 2 so that the operator 8 can easily check them, as shown in FIG.

FIG. 7 shows an example of the configuration of the transmission frame 34 created by the transmission control unit 17 of the portable data input device 9.

The transmission frame 34 is an inverted double-transmission type cyclic transmission frame commonly used in telemeters and the like. In FIG. 7, one frame consists of five words. One word consists of 32 bits. Synchronization word 3 at the beginning of transmission frame 34
After 4a is located, four information words are placed in succession. In the synchronization word 34a, the first bit is set to logic "1" and the 2nd to 30th bits are set to logic 1101?, etc., to make it easier to synchronize on the receiving side.

Information words 34b, 34c, 34d, and 34e are the first half 1
It is divided into 6 bits and the latter 16 bits.
The bit is transmitted by inverting the logic of the first half. This is called an inverted two-continuous transmission system, and is a system that can improve the error detection ability on the receiving side. Each information word is distinguished by the word address bits arranged at the 1st to 3rd bits. For example 3
4b is assigned as 101, 34c is assigned as 011, 34dG, and tolo.

A device number, so-called ID code, for identifying the crane 2 is placed in the information word 34b. In this case, 12 pits obtained by subtracting 3 bits for the word address and 1 bit for the parity pit from the first 16 bits can be used as the ID code.

The information words 34G and 34d store operation information that indicates the operation state of each operation button 14 for operating the crane 2 in logic 1 or 0. The number of operation information that can be stored is 12 bits per word, so the 2-word value is 241i.

Work management data set by the data input section 13 is stored in the information word 34e. The amount of information that can be sent at one time is 1
With 2 pits, the set work management data can be transmitted in a 12 pit binary code. Further, when transmitting work management data using a character code (for example, an ASCII code), the code consisting of 7 or 8 bits per character may be transmitted in multiple transmissions as many times as the number of character strings.

When transmitting operation information and work management data at the same time, it is necessary to carefully consider that the operation information must have real-time characteristics (and the response of start/stop operations must be quick).On the other hand, work management data must be It doesn't have to be that fast, and a time lag of a few seconds is acceptable.Therefore, information word 3
The operation information of 4c and 34d is transmitted every time, and the information word 34
There is no problem at all even if the work management data of e is transmitted multiple times.

Next, a portable data device '1 configured as shown in FIG.
The operation of No. 19 will be explained below. The transmission control unit 17 has a constant period T.
o reads the operation status of each operation button 14, edits the transmission frame 34 shown in FIG. While the button is pressed, the 1IG2 information word region 34C1 or N1 is set to 1 with bit S of the digit corresponding to the operation button 14 of the 13-digit operation information set to 1.
13 information word area 34d. Then, the transmission frame 34 including the operation information set as described above is repeatedly transmitted at the above-described constant period To.

When transmitting character data, the user manually inputs a character using the character keys of the keyboard 11, and inputs information indicating the type of character data input using the function key using the function key. The character data entered manually and the type code indicating the type of the character data are displayed on the display unit 12. After the operator 8 determines that the data displayed on the display unit 12 is correct, press the function key indicating [Send], and the multi-digit character data and type code displayed on the display unit 12 will be sent. It is incorporated into the NQ4 information word area 34d of the transmission frame 34 as data information.

The transmission frame 34 in which the operation information and work management data are incorporated as necessary is frequency-modulated by the output signal modulation section 18 and is wirelessly output from the transmitter 19.

In the mobile device side data receiving device 3, the frequency modulated signal received by the receiver 24 is demodulated into the original transmission frame 34 by each signal demodulating section 25,26. Then, the error detection unit 29 detects the device number in the Nα1 information word area 34b and the Na2. Error detection and double inversion verification of the operation information of the information words 1134b and 34c of Na3 are performed.
Only if it is correct, the operation information is output to the control panel 7 via the operation signal output section 27. Thus, the crane 2 moves in response to the operation of the operation button 14.

of the received transmission frame 34! IQ4 information word area 3
If the transmission data information is stored in the NQ3 information word area 34d, the error detection unit 31 detects an error in the transmission data information in the NQ3 information word area 34d, and only if it is correct, the digital work management data is output from the data output unit 30. The data is sent to the data processing device [5] via the transmission line 4. Also, the 8th
As shown in the figure, the result of error detection is displayed on each lamp 33a, 33b via the lamp drive circuit 32. That is, if the transmission is successful, the green lamp 33a lights up.
If a transmission error occurs, the red lamp 33b lights up. When the red lamp 33b lights up, the operator 8 uses the keyboard 11 of the data input section 13 to execute the sending operation again.

With the data transmission device configured in this way, the remote control unit 15 for operating the crane 2 and the data input unit 13 for inputting character data are integrated into one portable data input device 19.
Since the operator 8 operates the crane 2 to carry one article or one unit of article into and out of this warehouse, the operator 8 can check the numerical data such as the code of the article, the amount of a, etc.
It is possible to easily input a processing type code such as loading/unloading at the data input unit 13. Therefore, the operator 8 does not need to go to a separately installed data input terminal in order to input data, so the work efficiency of the work of carrying in and out of articles and the data input work associated with the work of carrying in and out of goods can be greatly improved.

In addition, since the operation of the crane 2 and the data input can be performed by a single operator 8, the labor costs required for warehouse management are significantly reduced compared to the conventional case where 2 operators were required. can.

In addition, when data is generally transmitted between computers, in order to confirm that data is being accurately transmitted from the sending side to the receiving side, the receiving side sends a normal response information (ACK) or an error message to the sending side. Response information (NCK)
I had to send it back. Therefore, it is necessary to include a transmitter and a receiver on both the data sending and receiving sides.

However, in this embodiment, since the sending side can easily check whether or not the data has been accurately transmitted by checking the lit state of the lamps 33a and 33b attached to the data receiving device 3 on the mobile side, portable data input There is no need to incorporate a receiver into the device 9 to receive response information. the result,
The portable data input unit M9 can be made smaller and more reliable.
Manufacturing costs can be reduced and operability can be improved.

FIG. 9 is a block diagram showing a mobile device side data receiving device of a data transmission device according to another embodiment of the present invention. The same parts as in the previous embodiment shown in FIG. 6 are given the same reference numerals. The portable data input device is the same as the portable data input device 9 shown in FIG.

In the mobile device side data receiving device of this embodiment, as shown in the figure, a receiver 24a that receives a frequency modulated signal of remote control information and a receiver 24b that receives a frequency modulated signal of transmitted data information are separately provided. ing. Then, each received signal is processed separately. Even with such a configuration, substantially the same effects as those of the above-described embodiment can be obtained.

[Effects of the Invention] As explained above, according to the data transmission device of the present invention,
Since the portable remote control device for remotely controlling a mobile machine such as a crane and the data input device for inputting work management data are integrated into an IN structure, the mobile machine operation and data input operation can be performed with the same device. Efficient warehouse management operations can be performed by human operators.

[Brief explanation of drawings]

FIG. 1 is a functional block diagram showing the present invention, and FIGS.
The figure shows a data transmission device according to an embodiment of the present invention, FIG. 2 is a schematic diagram showing a warehouse management system to which this device is applied, and FIGS. 3(a) and 3(b) are respectively A front view and a plan view showing the external appearance of the portable data input device, FIG. 4 is a diagram showing details of the data input section, FIG. 5 is a block diagram showing the portable data input device, and FIG. 6 is a diagram showing data on the mobile body side. FIG. 7 is a block diagram showing the receiving device, FIG. 7 is a diagram showing the structure of a transmission frame, FIG. 8 is a diagram for explaining the effect, and FIG. 9 is a diagram showing the data transmission device according to another embodiment of the present invention. FIG. 2 is a block diagram showing a mobile device side data receiving device. 2... Crane, 3... Mobile aircraft side data receiving device. 5... Data processing device, 7... Control panel, 8... Operator, 9... Portable data input device, 10... Housing, 11... Keyboard, 12... Display Part 13...
・Data input section, 14...Operation=button, 15...
Remote control unit, 17... Transmission control unit, 18... Output signal modulation unit, 19... Transmitter, 24... Receiver, 27
...Operation signal output section, 29°31...Error detection section,
30...Data output section, 33a. 33b...Lamp, 34...Transmission frame. Patent attorney Takehiko Suzue No. 211

Claims (1)

[Scope of Claims] A remote control unit for inputting operation information for remotely controlling a mobile body, a data input unit for inputting work management data generated as the mobile body moves, and the input operation. A portable data input device having a transmission control unit that incorporates information and work management data into a transmission frame of a time-division digital signal and outputs the same, and a transmitter that wirelessly outputs the transmission frame output from the transmission control unit; A receiver that receives the transmission frame wirelessly output from the transmitter of the portable data input device, and an error in determining whether or not the work management data included in the transmission frame received by the receiver has been correctly transmitted. The mobile device has a detection section, an error alarm that notifies the judgment result of the error detection section, and a data output section that sends only work management data judged to be correct by the error detection section to an external data processing device. A data transmission device comprising a data receiving device mounted on a mobile device.