JPS59799A - Working machine - 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 The present invention relates to a working machine such as an agricultural machine or a civil engineering construction machine, and more specifically to a working machine that issues an audio warning.

These days, work machines are equipped with microcomputers.

Advances in various sensors have provided many automatic monitoring functions and anti-inflammatory capabilities, and the development of voice synthesizers has led to a trend toward issuing various warnings by voice. When an abnormality occurs in such a working machine, it is necessary to immediately turn off the key switch, cut off the power supply, and stop the engine to ensure safety. However, if you turn off the key switch and cut off the power supply, the alarm sound will no longer be output, so you will not be able to fully understand the location of the outer shrine, and if there are abnormalities in two or more locations, only one abnormal location will be recognized. There is a problem that it does not appear. Furthermore, if the power supply is cut off by turning off the key switch, the sensor status changes and an accurate alarm sound cannot be output.

The present invention has been developed in view of the above circumstances, and it enables audio output for a predetermined period of time even when the key switch is turned off. The purpose of the present invention is to provide a work machine that improves safety and reliability by outputting an alarm sound when the vehicle is detected.

The present invention will be described in detail below with reference to drawings showing embodiments of a combine harvester.

Figure 1 is a schematic side view of a combine harvester according to the present invention (hereinafter referred to as the present invention machine), in which electronic devices as described below are installed in an operation column 91, 19 speakers 90 are mounted on the front side of a top sucker 98 behind the driver's seat. installed on.

Figure @2 is a block diagram schematically showing the main parts of the multiplex circuit of the machine of the present invention. In the figure, 10 is a microcomputer that automatically controls each unit, and a CPU (central processing unit) 11
．． Input/output interface 12, ROM (read only memory) 18 and RAM (random access memory) 14
The control program is configured to also control the force/ranari and voice notifications.

The power supply terminal of the microcomputer 10 is connected to the positive terminal of a battery 2 through a normally open contact 5a of an electromagnetic relay 5, which will be described later, and the negative terminal of the battery 2 is connected to the body ground.6The positive terminal of the battery 2 is connected to a key switch. The off-delay circuit 82 is connected to the input terminal of a switch circuit 88 interposed between the electromagnetic relay 5 and the body ground, and when the key switch 8 is turned on, the switch circuit 83 is turned on. turns on, the excitation coil 5C of the electromagnetic relay 5 is excited, and V? is applied between the battery 2 and the power supply terminal of the microcomputer IO. - The normally open contact 5L1fr is connected to close the circuit. Furthermore, even if the key switch 8 is turned off, the switch circuit 88 is turned on for a time determined by the off-delay circuit 82, and the excitation coil 5C of the electromagnetic relay 5 is excited, so that the normally open contact 5a continues to close, and the key switch 8 remains closed. Microcomputer 10 even after turning off
This occurs every time FN to is performed continuously for a predetermined time 1')jJ.

Multiple human-powered boats 12a of input/output interface 12
A large number of sensors, switches, etc. for protection and monitoring are connected to ar to a12 K. A threshing switch 41 is connected to the boat a1, which is turned on when the threshing lever involved in the threshing operation of the threshing clutch is operated to the threshing side, and sets the boat a low level. Turns on when the reaping lever, which controls the connection and removal of the latch, is operated to the reaping side. , and the reaping switch 42 which sets both boats to high level is connected. The boat a3K is provided with a signal that becomes high level when the output from the charging circuit 48 of the battery 2 is not obtained, and the charge lamp 78 is turned on by this signal. Boat A4 has a gauze that is turned on when the pressure in the hydraulic circuit of the oil I″E device driven by the engine is below a predetermined value (it is turned off when the normal pressure is reached due to engine rotation). boat a, 4
? An oil pressure sensor 44 that is set to a low level is connected, and when this oil pressure sensor 44 is turned on, an oil pressure lamp 74 is turned on. A switch circuit 8 is connected to the boat, and when the switch circuit 8 is turned on, the boat becomes low level. A charged liquid sensor 45 that is turned on is connected, and when the sensor 45 is turned on, the switch circuit 8 is turned on [7] and the charged liquid lamp 75 is turned on. A water temperature sensor 46 is connected to the water temperature sensor 46 that turns on the water temperature sensor 46 when the temperature of water added to the water temperature rises to a predetermined temperature or higher, and sets the water temperature sensor 46 to a low level. be.

A7 VC is connected to the No. 2 screw rotation sensor 47 that detects the rotation speed of the No. 2 screw in the No. 2 grain removal section, and when the No. 2 screw becomes overloaded, the No. 2 screw rotation sensor 47 outputs a high level signal to the boats, and the No. 2 police uniform lamp 77 lights up.

A handling cylinder rotation sensor 48 that detects the rotation speed of the handling cylinder is connected to the boat ~ and 84TIC, and when the handling cylinder becomes overloaded and the rotation speed becomes low, the handling cylinder rotation sensor 48 sets the boat ξ to a high level. At the same time, a deceleration instruction lamp 78 is lit, and if the rotation speed of the handling cylinder becomes abnormally low due to heavy load, the boat slope is set to a high level and a stop instruction lamp 79 is lit. .

A paddy sensor 50 is connected to the paddy sensor 50 which turns on when the paddy in the torabzatuka 98 reaches a predetermined level or higher and sets the alo to a low level, and when the sensor 50 is turned on, the top sukkah lamp 70 lights up. It looks like this.

A fuel sensor 51 using a positive characteristic thermistor attached to the fuel tank is connected to the baud)all, and is activated by being exposed to the air when the fuel falls below a predetermined level, and sets the baud)all to a low level. The fuel lamp 71 is turned on when the fuel sensor 51 is turned on. Beau) al
2, the cutter sensor 52 which sets the rc boat a12 to low level when it detects clogging of the straw cutter in the straw disposal section located at the rear of the machine is '4V! When the cutter sensor 52 is turned on, the cutter lamp 72 is turned on. BO) alslc is installed in the air purifier, and when the dust removal efficiency deteriorates, it is turned on and the boat hole 13 is turned on.
An air cleaner lamp 68 is connected which sets the air cleaner lamp to a low level and lights the air cleaner lamp 81.

Furthermore, a voice stop switch 54 for stopping the output of a voice message, which will be described later, is connected to the baud EL14VC, and when the switch 540 is turned on, the baud a14 becomes low level.

- A speaker 90 is connected to the power output baud)bi.
), receives a control signal from the CPU I, reads out data in a ROM (read-only memory) dedicated to the speech synthesizer that stores audio data, and outputs an analog audio signal.7. This is a configuration for driving the speaker 90 and 1-.

Output port bz~'04K is connected to each lamp 61 to 68 of a master lamp 60 consisting of three types of lamps, and each output port b2. b3. When b4 becomes low level, lamps 61, 62, and 68 are lit, respectively. Master lamp 60 is all the switches.

Logically judge the status of sensors 41 to 48 and 50 to 52,
Each lamp 61 to 6B corresponds to the degree and condition of the abnormality.
& Lights up or flashes. 61 lights up continuously when the work is being done normally, and lights up when the broken cylinders are not in working condition even though they are in normal condition. It is a heavy-colored lamp, and the degree of abnormality in 62 is relatively 4 degrees, so it is possible to continue working, but the size is 1.
Then, if the abnormality expands and there is a loss of property, the yellow lamp will flash, and if you respond immediately, there is a danger that you will not be able to continue working. This is a red lamp that flashes when a high abnormality occurs. A buzzer 55 for prompting a start-up inspection is connected to the output port b5ic.

When the key switch 8 is turned on, the microcomputer 10 outputs a plurality of messages related to start-up inspections by voice.
li'i next episode? However, it has a blank configuration, and when the voice stop switch 58 is pressed after one message,
A new message has been issued to encourage the initial inspection.

Each input capo) a3 to a12 is connected to the boat 88. F37. a4I
, hook, al.

is high level, boat a4+ a51 aO, all
+ al2 + alB lights up the lamps 74-79, 70-72゜81 for the low level, and the following message is issued with the same number as each boat.
Ru.

Message number inside ′ content a3
JUUDEN CAIRO GAIJODES (Charging circuit is abnormal) FL4 YUATSU CAIRO GAIJI 9 UDES A5
A6 Overheat Death (It's overheating) A7 Niban Screw Gariki Fukkadesu (No. 22 screw is overloaded by 4〒) A8 Gensokushi Tekusai (Please slow down) aO: Please stop. alO: The top suckers are full. All: Please replenish the fuel. (is clogged!) al3 Air cleaner failure (air cleaner is abnormal) Each message is repeatedly issued until the monitoring means such as each sensor detects an abnormality and 53 turns on.

No. 81J is a plan view of the vicinity of the driver's seat of the present invention.
'C master lamp 60 is provided, and a small blue lamp 61. l1 of yellow lamp 62 + red lamp 63
It is placed side by side with li\. A key switch 8 is provided on the front panel 91 toward the side of the master lamp 60, and furthermore, in the front of the side panel 95 on the left side of the driver's seat 92, the above-mentioned warning lamps 70 to 79 are provided. A force is provided.

A small compartment 98a for the speaker 90 is provided inside the top sucker 9a behind the driver's seat, and a round hole is made in the steel plate that forms the outer wall of the top sucker 9B, and this steel plate is used as a baffle board. A speaker 90 is attached to the l-.

Now, the control routine of the microcomputer IO will be explained based on FIG. When the key switch 3 is turned on, the switch circuit 88 is turned on, the excitation coil 5C of the electromagnetic relay 5 is excited, and the normally open contact 5a is closed. As a result, the microcomputer 10 is supplied with Ml and the microcomputer 10 is automatically activated. Is it possible to perform control? Start. The microcomputer 10 sets the starting inspection flag SF'l!, which indicates that the starting inspection has been executed once. y-reset state SF=Q,! - and the charging circuit 43
and whether the hydraulic circuit 44 is operating normally or not.'2
Human capo) 8. Examine in the condition of 3 and a4. And are the charging circuit 43 and the 1st pressure sensor 44 both V4 normal? When it is detected that boat a3 is at high level and boat a3 is at low level, start-up inspection control is executed. Hit,
Even if the key switch 3 is turned on but the engine is not started, the charging circuit 43 does not start charging even though the charging circuit and hydraulic circuit are normal, so the charging circuit 43 is blank) a3 is at a high level, and since the pressure in the hydraulic circuit has not increased, the oil pressure sensor 44 is turned on and the boat a4 is at a low level. Therefore, charging circuit 48. In a state where both oil pressure sensors 44 detect an abnormality, it is assumed that the power has been turned on but the engine has not been started yet, and a start-up inspection is prompted. In this case, charging circuit 4
This is based on the premise that 8 and the hydraulic circuit do not have different MvCs at the same time.

The start-of-work inspection control is to sequentially issue messages related to a plurality of start-of-work inspections, such as L7 described above, after the voice stop switch 54 is pressed. (If the buzzer 55 is set to sound at the beginning? When the inspection system PJ is completed, the start-up inspection flag SF is set in the microcomputer 10 to state 5F-1, and the start-up inspection control is not executed thereafter. .

Thereafter, the microcomputer 10 inputs the status of the charging circuit 4B, sensors other than the oil pressure sensor 44, etc. to the input boat 8,
Monitoring is performed depending on the situation of 5 to a13, and when one of the sensors detects an abnormality, the input port an (n = 6 to 18) becomes 1L.
ff -1/bell (chemical 1. capo) A-3ta7+a
8. a9+ alo only), then the message related to the monitoring seal a n
For example, when the water temperature sensor 46 detects a normal condition and the boat a6 becomes low level, the message a6 "overheat test" is emitted from the speaker 902. On the other hand, when the engine is started, the charging circuit Which side of the 48° oil pressure sensor 44: 岑1. 2) The human powered boat a, 3 is low level and/or the input capo) a4 is high level, and the microcomputer IO detects that each sensor is normal. Input the operating status of monitoring means 43 to 48, etc., and 50 to 53)
Depending on the situation of a3 to a13, 111α order% is observed, and if any of the visual means detects an abnormality, the input port □an is at a low level (however, input capo) as+a* a8, a
9 If the pigeon loft of ealO reaches a high level), a message an will be issued. In this way, the microcomputer 10 monitors each input port in sequence, but it monitors all input ports in one sequence.L) When the microcomputer 10 finishes, it memorizes the status of all boats and stores them until the next human power is available. .

The driver listens to this warning message and takes the prescribed action.
To do this, turn off the key switch 8 and stop the engine 12. However, even if the key switch 8 is turned off, the excitation coil 5C of the relay 5 and the excitation coil 5C remain constant in the off-delay circuit 82. After a delay, the normally open contact 5af opens #r.
]7, the microcomputer is designed to cut off communication to the IO, so the microcomputer IO can perform operation 1 during this predetermined time. Part 1. Within this lever time, the microcomputer 101 is pressed, and just before the key switch 8 is turned off, the key is pressed ζf1. If there is an incoming port (an) in which an abnormality has been detected in the situations of f incoming ports 83 to a13, the relevant predetermined message an is sent a predetermined number of times (m times). It will be issued. .

Therefore, even if the key switch 8 is turned off and the engine is stopped, the message related to the input boat an in which the abnormality was detected immediately before the key switch 3 was turned off will be reliably output multiple times on the medium diameter 1. , the driver can reliably understand the content of the message. In particular, when a message is issued and L7 is turned on after the key switch 8 is turned off, the status of monitoring means such as sensors changes when the key switch 8 is turned off, so there is a risk of false alarms. In such a case, the message will be transmitted when the engine is stopped, so the message will open when there is little noise.
Messages will not be missed. In addition, if the abnormality that occurs extends over two points,
Messages related to the abnormal area are issued 11 times. Also, the microcomputer lO'f-
Although the microcomputer 10 is configured to operate by supplying power through the key switch 8 and the off-delay circuit 41 even after the key switch is turned off, the power is supplied to the microcomputer 10 without going through the key switch 8. The off signal of the key switch is sent to the microcomputer.
Depending on the situation, O may be used as a lever to perform the above-mentioned control.

As described in detail above, the present invention focuses on the operation of predetermined parts.

A working machine VC is provided with a state monitoring means and a voice synthesis device, and when the monitoring means detects a predetermined operation or state, the voice synthesis device emits a message corresponding to the detected operation or state. This system is equipped with a means for storing the detected contents, and a means for emitting a message related to the stored contents after a predetermined 'αα switch is shut off, so that the alarm message can be reliably transmitted to the end without any possibility of erroneous output. As a result, a work machine with excellent safety and reliability can be realized.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a schematic side view (threshold) of the machine of the present invention, and FIG. 2 is a plan view of the main electronic circuit block south 2. FIG. 8 is a plan view of the area around the driver's seat. Figure 4 is a control flowchart. 2...Battery, 8...Key switch, 5...Electromagnetic relay, 10...Microcomputer, 48...
Charging circuit, 44... Oil pressure sensor, 65... Fuel sensor, 50... Paddy sensor, 52... Cutter sensor, 6
0...Master lamp, 82...Off delay circuit, 90...Speaker. Patent applicant Tomoo Kono, patent attorney representing Yanmar Agricultural Machinery Co., Ltd.

Claims (1)

[Claims] 1. A work machine equipped with means for monitoring the operation and condition of a predetermined part and a voice synthesizer, and configured to emit a message corresponding to the predetermined operation or condition from the voice synthesizer when the monitor means detects a predetermined operation or condition. A work machine characterized in that it comprises means for storing the monitoring contents, and means for issuing a message related to the stored contents after a predetermined power switch is turned off.