JPH0399529A - Mobile body communication equipment - Google Patents

Abstract

PURPOSE:To surely inform a worker of reception of work information from a command place to improve the work efficiency by outputting and displaying received work information in the visual recognizable state. CONSTITUTION:An LCD 12 and a printer 13 are built in a transmission/reception equipment 5 provided in a forklift 3, and work information received by a radio part 9 is outputted in the visual recognizable state. Reception of work information is reported to a worker W by a revolving lamp 15 and a buzzer 16 of the equipment 5. In this case, when work information is received, the buzzer 16 is operated only at the time of slow running or stop of the forklift 3. Consequently, the work efficiency is improved.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a mobile communication device that transmits work information from a command center such as an office to a work vehicle such as a forklift that is working inside a factory, warehouse, etc. It is something.

[Prior Art] Conventionally, this type of mobile communication device has been used, for example, in a factory,
Work vehicles such as forklifts that work in warehouses, etc. are equipped with a receiving device to receive radio waves transmitted from the transmitting device of the command center, and the work information received by the receiving device is made visible. Some devices are equipped with an output device that includes an output section for output display. In this mobile communication device, when work information is received by the receiving device, a buzzer is activated to notify the worker of the reception of the work information with a sound (see Japanese Patent Laid-Open No. 193342/1983). .

[Problems to be Solved by the Invention] However, in the conventional mobile communication device, when work information is received by the receiving device, the buzzer is uniformly emitted not only during the cargo handling operation of the forklift truck but also while the forklift is moving. It rings. For this reason, for example, if a buzzer sounds while a forklift is being driven to transport cargo, the worker will have to look at the display while driving the forklift, which will prevent them from concentrating on driving and reduce work efficiency. There was a problem. Further, a similar problem occurs in a configuration in which a revolving light is used to notify the worker of the reception of work information.

The present invention was made in view of the above-mentioned circumstances, and
The purpose of this is to ensure that workers are informed of the receipt of work information from the command center, and also to allow workers to concentrate on driving when the work vehicle is moving, thereby improving work efficiency. An object of the present invention is to provide a mobile communication device.

[Means for Solving the Problems] Therefore, in order to achieve the above-mentioned object, the present invention provides a means for transmitting work transmitted from a transmitting means of the command center to a work vehicle that performs work in the premises based on instructions from the command center. a receiving means for receiving information; an outputting means for outputting and displaying the work information received by the receiving means in a visible state; and a means for instructing a worker to receive work information based on the work information received by the receiving means. a notifying means for notifying a worker; a vehicle speed detecting means for detecting a traveling speed of the working vehicle; and a notifying means for notifying a worker when the traveling speed detected by the vehicle speed detecting means is smaller than a predetermined value. The gist of the invention is a mobile communication device equipped with a control means that allows the following.

[Operation] When work information is transmitted from the transmission means of the command center, the work information is received by the reception means of the work vehicle.

The received work information is output and displayed in a visible state by the output means. At this time, the traveling speed of the work vehicle is detected by the vehicle speed detection means, and if the detected traveling speed is smaller than a predetermined value, the notification means is allowed to notify the worker.

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

As shown in Fig. 1.2, a transmitting/receiving device 4 as a transmitting means is installed in an office l serving as a command center.
Messages are sent to a forklift 3 serving as a work vehicle that performs work within the premises of the factory 2. This transmitting/receiving device 4 includes an input section 6 such as a keyboard for inputting messages, a control section 7 that controls input signals from the human power section 6 and inputs/outputs electrical signals, and It is comprised of a radio section 8 that transmits electrical signals as radio waves and receives radio waves from the forklift 3.

The message inputted by the human power section 6 is work information for instructing the worker W of the forklift 3 on the content of the work. The radio section 8 is equipped with an FSK modulation circuit and a demodulation circuit, and is configured to use the frequency of an empty television channel and to transmit and receive weak radio waves that are not regulated by the Radio Law.

A transmitting/receiving device 5 is mounted on the instrument panel 11 of the forklift 3 as a receiving means for exchanging radio waves with the transmitting/receiving device 4. The transmitting/receiving device 5 is equipped with an FSK modulation circuit and a demodulating circuit similar to the radio unit 8, and uses the frequency of an empty TV channel and is a wireless device for transmitting and receiving weak radio waves that are not regulated by the Radio Law. A control section 10 is connected to the radio section 9.

As shown in FIGS. 2 and 3, on the output side of the control section 10,
A liquid crystal display (hereinafter referred to as I) for displaying the current work information received by the radio section 9.

A printer 13 for printing the work information displayed on the LCD 12 onto a printing paper P is connected to the CD 12. These LCD l 2 and printer 1
Reference numeral 3 is incorporated in the front panel 5a of the transmitting/receiving device 5, and constitutes an output means for outputting and displaying the work information received by the wireless section 9 in a visible state.

Also, connected to the output side of the control section 10 are a round eave light 15 that turns on when work information is received by the wireless section 9, and a buzzer 16 that emits a notification sound.

The revolving light 15 is a helad guard 14 of the forklift 3.
A buzzer 16 is installed on the front panel 5a of the transmitting/receiving device 5, and the revolving light 15 and buzzer 16 notify the worker W of the reception of the work information. A notification means is configured.

On the other hand, a completion button 18 is connected to the input side of the control unit 10, which is pressed to erase the display content displayed on the LCD 12 after completing the work based on the instructed work information. Further, a vehicle speed sensor 19 is connected to the input side of the control unit 10 as a vehicle speed detecting means, which is attached to a transmission (not shown) of the forklift 3 and detects the traveling speed of the forklift 3.

When the wireless unit 9 receives the work information from the transmitting/receiving device 4, the control unit 10 reads the detection signal detected by the vehicle speed sensor 19, and adjusts the traveling speed of the forklift 3 (1).
Calculate. Then, the control unit 10 determines the current traveling speed v1 and the reference traveling speed v2 stored in advance in the internal memory.
Compare with.

The reference traveling speed ■2 in this embodiment is when the worker W
This is the traveling speed at which the forklift 3 can be driven safely and reliably while watching the display contents of D12, and is a value experimentally determined.

Then, when it is determined that the calculated traveling speed ■1 is smaller than the reference traveling speed ■2, the control section 10 causes the buzzer 1 to
6 and rotating light 15 are allowed to operate. The control unit 10 operates the buzzer 16 and the revolving light 15, and at the same time starts measurement by a built-in timer 10a, and stops the operation of the buzzer 16 and the revolving light 15 when it is determined that a predetermined time has elapsed. It has become. On the other hand, if it is determined that the calculated running speed V1 is equal to or higher than the reference running speed 72, the control unit 10 does not activate the buzzer 16 and the revolving light 15, and waits until the running speed v1 becomes smaller than the reference running speed v2. It looks like this.

By the way, when other work information is received by the wireless unit 9 while the work information is being displayed on the LCD 12, the control unit 10 temporarily stores the work information in the internal memory and also displays the received work information. The number is displayed on the LCD 12. The display rl/4J on the upper part of the LCD 12 in FIG. 3 indicates that the number of received work information is four, and the first received work information among them is displayed on the LCD 12. The display contents of the LCD 12 can be sequentially switched by pressing a switch button 20 built into the upper part of the front panel 5a.

When the work is performed according to the work information displayed on the LCD 12 and the completion button 18 is pressed, the control unit 1
0 causes the display contents to be erased and the next work information stored in the internal memory to be displayed on the LCD 12. Further, when the completion button 18 is pressed as described above, the control unit 10 causes the wireless unit 9 to transmit completion information to inform the office 1 that the work based on the instructed work information has been completed. ing.

A numeric keypad 21 is incorporated on the front panel 5a of the transmitting/receiving device 5, and information to be sent to the office 1, etc. can be input by operating the numeric keypad 21.

Next, the operation of this embodiment configured as described above will be explained according to the flowchart shown in FIG.

First, the control unit 10 of the transmitting/receiving device 5 installed in the forklift 3 waits for the wireless unit 9 to receive work information from the transmitting/receiving device 4 of the office 1 (step 1, hereinafter, step is denoted by S). ).

When determining that the work information has been received, the control unit IO displays the work information on the LCD 12 (S2) and causes the printer 13 to print the work information (S3).

Then, the control unit 1o reads the detection signal detected by the vehicle speed sensor 19, and calculates the traveling speed v of the forklift 3.
134), and compares the running speed v1 with a reference running speed V2 stored in advance in the internal memory (s5).
.

At this time, if it is determined that the traveling speed v1 is smaller than the reference traveling speed 2 (Vl<V2), the control section 10 determines that the forklift 3 is stopped or traveling at a low speed, and turns on the buzzer 16. It is activated to generate a notification sound and to turn on the revolving light 15 (S6). Therefore, the worker W uses the buzzer 16 to confirm that the work information has been received.
The content of the work information can be known by the notification sound and by looking at the LCD 12 or printer 13.

On the other hand, if the control unit 10 determines in S5 that the traveling speed Vl is equal to or higher than the reference traveling speed 72 (CVt≧V2), the forklift 3 travels at a corresponding speed, and the worker W concentrates on driving the forklift 3. The buzzer 16 and revolving light 15 are not activated. Therefore, the worker W is not distracted by the notification sound from the buzzer 16, and can efficiently perform the traveling work.

Note that, as described above, when the running speed v1 is equal to or higher than the reference running speed 72, the control section 10 waits until the running speed (1) becomes smaller than the reference running speed (2). And V
The buzzer 16 and rotating light 15 are allowed to operate only when l<V2.

The control unit 10 operates the buzzer 16 and the revolving light 15 in S6, and at the same time starts measurement by the timer 10a (
S7). Then, the control section 10 maintains the operation of the buzzer 16 and the rotating light 15 until a predetermined time has elapsed, and when it is determined that the predetermined time has elapsed (S8), the buzzer 16 and the rotating light 15 are operated. Stop light 15 (
S9).

Furthermore, after the buzzer 16 and rotating light 15 are stopped, the control unit 1
0 waits for the completion button 18 to be pressed (SIO), and when it is determined that the completion button 18 has been pressed, it is determined that the work based on the work information displayed on the LCD 12 has been completed,
Erase the work information displayed on the LCD 12 (Sl
l) The wireless unit 9 transmits completion information to inform the office 1 that the work has been completed. And the control section]
, 0 returns to Sl and waits for work information to be received again.

In this manner, the mobile communication device of this embodiment does not operate the buzzer 16 unconditionally when work information is received, but rather determines whether the forklift 3 is running at low speed or has stopped. Since the buzzer 16 is activated only when the forklift 3 is running, the worker W is not distracted by the buzzer 16 when the forklift 3 is running, and can concentrate on running the forklift 3, thereby improving work efficiency. becomes possible.

It should be noted that the present invention is not limited to the configuration of the embodiments described above, and may be modified as desired without departing from the spirit of the invention, for example, as described below.

(1) In the above embodiment, the received identification information is
2 and the printer 13, the output display may be performed using either one.

(2) In the above embodiment, the buzzer 16 is automatically stopped when a predetermined time has elapsed after activation, but the buzzer 16 may be stopped by pressing a button or the like.

(3) In the embodiment described above, the buzzer 16 is activated when the forklift 3 is running at low speed or is stopped, so the buzzer 16 is activated even when the forklift 3 is stopped and carrying out cargo handling work. 16 will be activated. Therefore, if work information is received while the forklift 3 is stopped and carrying out cargo handling work, the buzzer 16 is not activated and the traveling speed V1 is lower than the reference running speed V2, and the cargo handling work is not carried out. The buzzer 16 may be activated only when work information is received when the user is not working.

In this case, for example, a pressure sensor for detecting the load of the cargo applied to the fork of the forklift 3 is installed in the hydraulic system of the fork, and based on the detection signal output from this pressure sensor, it is determined whether the cargo is being handled or not. The control unit 10 may determine whether or not the alarm is detected, and the operation of the buzzer 16 may be controlled based on the result of the determination.

(4) In the above embodiment, the printer 13 is activated at the same time as the work information is displayed on the LCD 12, but the printer 13 may be activated when the buzzer 16 is activated. When the forklift 3 is running, the user will not be distracted by the noise generated during printing.

(5) In the embodiment described above, the rotating light 15 and the buzzer 16 constitute the notification means, but either one may be omitted.

[Effects of the Invention] As detailed above, according to the present invention, it is possible to reliably notify the worker of the reception of work information from the command center, and also to make the worker concentrate on the movement of the work vehicle. This has the excellent effect of making it possible to improve work efficiency.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment embodying the present invention, FIG. 2 is a block diagram showing the relationship between an office transmitting/receiving device and a forklift transmitting/receiving device, and FIG. 3 is a block diagram of a forklift transmitting/receiving device. FIG. 4, a partial front view, is a flowchart showing the operation of the forklift transceiver device. In the figure, 1 is an office as a command center, 3 is a forklift as a working vehicle, 4 is a transmitting/receiving device as a transmitting means, 5 is a transmitting/receiving device as a receiving means, 10 is a control unit as a control means, and 12 is an output means LCD, 13 forming a part of
15 is a rotating light that is a part of the notification means; 16 is a buzzer that is a part of the notification means; 19 is a vehicle speed sensor that is a vehicle speed detection means; vl
is the traveling speed, ■2 is the standard traveling speed, and W is the worker.

Claims (1)

[Claims] 1. Receiving means for receiving work information transmitted from the transmitting means of the command center to a work vehicle that performs work in the premises based on instructions from the command center; output means for outputting and displaying work information in a visible state; notification means for notifying a worker of reception of work information based on the work information received by the receiving means; and detecting the traveling speed of the work vehicle. A mobile communication device comprising: a vehicle speed detection means for detecting a vehicle speed; and a control means for allowing the notification means to notify a worker when the traveling speed detected by the vehicle speed detection means is smaller than a predetermined value.