TWM480744U - Speed limit warning device for handling vehicles - Google Patents

Description

Speed limit warning device for carrying vehicles

The present invention relates to a speed limit warning device for transporting a vehicle, and more particularly to a speed limit warning device for a transport vehicle for transporting goods, such as a stacker, a tow truck or a lift truck.

The conventional transportation vehicles such as stackers, tow trucks or lifting trolleys are indispensable transportation equipments in the warehouse management system (WMS), such as various types of stores, warehouses, factories or logistics centers. Transport the vehicle. Since the handling vehicle needs to carry various types of goods, resulting in a large overall body weight, if the handling vehicle is traveling too fast during the loading process, its large momentum will pose a potential safety threat. Once the handling vehicle unfortunately smashes pedestrians, implements, shelves or other obstacles around it, it is easy to cause serious accidents, causing huge losses to the operators and may even cause casualties. In view of this, the driving speed of conventionally used vehicles should be strictly limited to ensure the safety of life and property of the personnel involved.

More specifically, please refer to a conventional stacker 2 shown in FIG. 1 , which includes a body 21 , a driver's seat 22 and a lifting device 23 , which combines several bodies 21 The wheel 211 is disposed in the vehicle body 21, and the lifting device 23 is coupled to the outside of the vehicle body 21. Accordingly, when the user manipulates the stacker 2 in the driver's seat 22, since the two sides of the lifting device 23 are located at the user's line of sight, once the speed of the stacker 2 is too fast, a little Inadvertently, the body 21 or the lifting device 23 may be rubbed around. An accident with a pedestrian or obstacle.

However, the conventional stacker 2 described above always lacks a method of effectively controlling its traveling speed, and can only rely on the user's self-discipline to drive the stacker 2 carefully. Although a conventional speedometer (not shown) may be disposed on one of the control panels 221 in front of the driver's seat 22 for the user to immediately read the traveling speed of the stacker 2, the user manipulates the stacker 2 During the process, the lifting device 23 and the vehicle body 21 must be separately controlled, and at the same time, it is necessary to pay attention to the goods carried by the lifting device 23 and the pedestrians or obstacles around them, and it is difficult to distract the readings of the speedometer to control the driving. speed.

Therefore, even if many stores or warehouses have already set a safe speed limit for the handling vehicles such as the stacker 2, the user often unconsciously speeds in the process of manipulating the stacker 2, causing the speed to pass. The rapid accidents are frequently transmitted, and the safety of the cargo transportation process is greatly reduced.

In summary, there is a need to provide a speed limit warning device for transporting a vehicle to promptly alert the user when the speed of the moving vehicle approaches or exceeds the speed limit, and to ensure that the speed of the moving vehicle is controlled within a safe speed limit. Avoid the risks involved in driving too fast, and effectively improve the safety of the cargo transportation process.

One of the purposes of the present invention is to provide a speed limit warning device for transporting a vehicle, which uses a speed sensing unit to sense the traveling speed of a moving vehicle, and uses a control unit to determine that the traveling speed of the moving vehicle is greater than, equal to, or less than one. a speed limit value, and when the control unit determines that the traveling speed of the transporting vehicle is greater than the speed limit value, the warning unit is controlled to generate a warning message to remind the user to pay attention to the overspeed condition, and has the effect of effectively improving the safety of the cargo transportation process. .

Another object of the present invention is to provide a speed limit warning device for transporting a vehicle, wherein the control unit controls the warning unit to issue another warning message when the traveling speed of the moving vehicle is close to or equal to the speed limit, so that the user can enable the user to Paying attention to the speed of moving vehicles The speed limit will soon be exceeded, which will further improve the safety of the cargo transportation process.

In order to achieve the above-mentioned creative purposes, the technical means used in the present invention include: a speed limit warning device for transporting a vehicle, comprising: a speed sensing unit for sensing the traveling speed of the moving vehicle and generating a speed signal accordingly a control unit coupled to the speed sensing unit to receive the speed signal, the control unit storing a speed limit, and the control unit capable of comparing the speed signal with the speed limit; and a warning unit And being coupled to the control unit to generate an alert message when the control unit determines that the traveling speed of the transporting vehicle is greater than the speed limit.

The speed limit warning device of the present invention, wherein the body of the transport vehicle is combined with a wheel, and the speed sensing unit is a Hall sensor, a rotary encoder or an optical tachometer for measuring the rotational speed of the wheel. And calculating the traveling speed of the moving vehicle according to the outer diameter of the wheel, according to which the speed signal is generated.

The speed limit warning device of the present invention, wherein the speed sensing unit is an optical tachometer, comprising a reflector and a sensor, the reflector is fixed to the wheel, and the sensor is fixed adjacent to the vehicle body. The position of the wheel, when the wheel is rotated to minimize the distance between the reflector and the sensor, the reflector will be aligned with the sensor in an axial direction of the wheel.

The speed limit warning device of the present invention, wherein the control unit controls the warning unit to issue another warning message when the traveling speed of the transportation vehicle is close to or equal to the speed limit.

The speed limit warning device of the present invention, wherein the control unit calculates a reference value by using the speed limit value, and the control unit can compare the speed signal with the reference value to determine whether the traveling speed of the moving vehicle is close to The criterion for determining the speed limit.

The speed limit warning device of the present invention, wherein the warning unit is a buzzer or a horn for generating a warning sound as the warning message.

The speed limit warning device of the present invention, wherein the warning unit is a light-emitting component or a screen for generating a warning light number as the warning message.

The speed limit warning device of the present invention, wherein the speed limit is preset to be stored in the control unit.

The speed limit warning device of the present invention further includes a speed limit adjustment unit for the user to input a message to generate a speed limit adjustment signal, wherein the speed limit adjustment unit is coupled to the control unit to enable the control unit The speed limit adjustment signal can be received and set according to the speed limit.

The speed limit warning device of the present invention further includes a speed display unit coupled to the control unit to receive the speed signal generated by the speed sensing unit for displaying the transport vehicle according to the speed signal Driving speed.

[this creation]

1‧‧‧Speed limit warning device for transporting vehicles

11‧‧‧Speed sensing unit

111‧‧‧Reflecting film

112‧‧‧ sensor

12‧‧‧Control unit

13‧‧‧Warning unit

14‧‧‧speed limit adjustment unit

15‧‧‧Speed display unit

[study]

2‧‧‧ body

21‧‧‧ body

211‧‧‧ wheels

22‧‧‧ Driver's seat

221‧‧‧Control panel

23‧‧‧ Lifting device

Figure 1 is a schematic view of the appearance of a conventional stacker.

Figure 2 is a schematic diagram of the architecture of an embodiment of the present invention.

Fig. 3 is a schematic view showing the installation of the speed sensing unit of an embodiment of the present invention.

Figure 4 is a cross-sectional view showing the speed sensing unit of an embodiment of the present invention.

In order to make the above and other objects, features and advantages of the present invention more comprehensible, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Coupling means that the two devices can transfer data to each other by means of a wired entity, a wireless medium or a combination thereof (for example, a heterogeneous network), which is generally in the technical field of the present invention. Knowledge people can understand.

Referring to FIG. 2, the speed limit warning device 1 for transporting a vehicle according to the present embodiment includes a speed sensing unit 11, a control unit 12, and a warning unit 13. The control unit 12 is coupled to the speed sensing unit 11 and the warning unit 13 respectively. The speed limit warning device 1 of the transport vehicle can be disposed in the vehicle body 21 of the stacker 2.

Please refer to FIG. 1 , the speed limit warning device for carrying the vehicle in the present embodiment. The first embodiment can be applied to the conventional stacker 2, and the speed limit warning device 1 of the transport vehicle is preferably disposed in the vehicle body 21 of the stacker 2, and the vehicle body 21 is coupled with a plurality of wheels 211.

The speed sensing unit 11 is configured to sense the traveling speed of the stacker 2 and generate a speed signal. In detail, the speed sensing unit 11 can be a Hall sensor, and rotate. A conventional rotational speed sensing device such as a rotary encoder or an optical tachometer is provided for one of the wheels 211 of the vehicle body 21. Thereby, the speed sensing unit 11 can measure the rotation speed of the wheel 211, and calculate the traveling speed of the stacker 2 according to the outer diameter of the wheel 211, thereby generating the speed signal.

In more detail, please refer to FIG. 3 and FIG. 4 together. In the embodiment, the speed sensing unit 11 is an optical tachometer as an example, and includes a reflector 111 and a sensor 112. The reflector 111 can be fixed to the wheel frame of the wheel 211 by being pasted or locked. The sensor 112 is fixed to the position of the vehicle body 21 adjacent to the wheel 211. The reflector 111 and the sensor 112 are The distance will vary as the wheel 211 rotates. When the wheel 211 rotates to minimize the distance between the reflector 111 and the sensor 112, the reflector 111 will be along the axial direction of the wheel 211. The sensors 112 are aligned with each other, and the reflector 111 and the sensor 112 form a minimum spacing, which is preferably less than 公1 cm.

Thereby, the sensor 112 can project a light source toward the wheel 211. The light source is preferably a laser light source, and when the wheel 211 rotates to form the reflector 111 and the sensor 112 to form the minimum distance, The reflector 111 can reflect the light source to the sensor 112. After receiving the light source reflected by the reflector 111, the sensor 112 determines that the wheel 211 has completed a single rotation. Therefore, the sensor 112 can continuously project the light source toward the wheel 211 to measure the rotation speed of the wheel 211, and calculate the traveling speed of the stacker 2 according to the outer diameter of the wheel 211, thereby generating The speed signal.

The control unit 12 is preferably a micro controller unit (MCU), a single chip or a digital signal processor (DSP). The control unit 12 is coupled to the speed sensing unit 11 to receive the speed signal generated by the speed sensing unit 11 according to the traveling speed of the stacker 2. The control unit 12 can preset the storage speed limit. Therefore, the control unit 12 compares the received speed signal with the speed limit to determine that the speed of the stacker 2 is greater than, equal to or Less than the speed limit.

The warning unit 13 is coupled to the control unit 12, so that when the control unit 12 determines that the traveling speed of the stacker 2 is greater than the speed limit, a warning message is generated to remind the user to pay attention to the overspeed condition. In more detail, the alert unit 13 can be a buzzer or a horn for generating an alert sound as the alert message; or the alert unit 13 can be a light-emitting component or a screen for generating a warning light as the Warning message.

On the other hand, the warning unit 13 can generate the warning message when the traveling speed of the stacker 2 is greater than the speed limit to remind the user to pay attention to the overspeed condition, and the control unit 12 can also be used in the stacker. When the driving speed of 2 is close to or equal to the speed limit, the warning unit 13 is controlled to issue another warning message to ensure that the speed of the handling vehicle is controlled within the speed limit. The control unit 12 can use the speed limit to calculate a reference value as a criterion for determining whether the traveling speed of the stacker 2 is close to the speed limit. For example, the control unit 12 can adopt the speed limit. The value is 0.9〞 as the reference value; or the speed limit minus 〝5km/h〞 is used as the reference value. The control unit 12 can compare the speed signal with the reference value, and when the control unit 12 determines, by the comparison operation, that the traveling speed of the stacker 2 is greater than the reference value and less than the speed limit, the control unit 12 can determine The speed of the stacker 2 is close to the speed limit. When the alert unit 13 is a buzzer or a horn, the other alert message may be an audio or continuous hold sound different from the alert message; when the display unit 23 is a light-emitting component or a screen, the other A warning message can be a warning light with a different color or flashing frequency.

With the above configuration, the speed limit warning device 1 for transporting a vehicle of the present embodiment can be applied to the above-described conventional stacker 2 or other conventional transport vehicles to sense the traveling speed of the transport vehicle by using the speed sensing unit 11 and The control unit 12 determines the trip of the vehicle The driving speed is greater than, equal to, or less than the first speed limit, and when the control unit 12 determines that the traveling speed of the moving vehicle is greater than the speed limit, the warning unit 13 is controlled to generate a warning message to remind the user to pay attention to the overspeed condition. Effectively curbing the user's speeding during the handling of the handling vehicle does have the effect of effectively improving the safety of the cargo transportation process.

In addition, the warning unit 13 can generate the warning message when the traveling speed of the transportation vehicle is greater than the speed limit to remind the user to pay attention to the overspeed condition, and the control unit 12 can also approach the traveling speed of the transportation vehicle. When the speed limit is used, the warning unit 13 is controlled to issue another warning message, so that the user can timely notice that the traveling speed of the moving vehicle is about to exceed the speed limit to ensure that the speed of the moving vehicle is controlled within the speed limit. It does have the effect of further improving the safety of the cargo transportation process.

However, please continue to refer to FIG. 2, if the speed limit is preset to be stored in the control unit 12, the speed limit will not be elastically adjusted according to the operating environment of the stacker 2. Therefore, the speed limit warning device 1 for transporting the vehicle of the present invention preferably further includes a speed limit adjustment unit 14, which can be a conventional input device such as a button, a knob or a touch screen, and can be used by the user. The input message in turn generates a speed limit adjustment signal. The speed limit adjustment unit 14 is coupled to the control unit 12, so the control unit 12 can receive the speed limit adjustment signal and set the speed limit accordingly.

In addition, the speed limit warning device 1 for transporting the vehicle may be further provided with a speed display unit 15 coupled to the control unit 12 to receive the speed signal generated by the speed sensing unit 11 . And the speed display unit 15 can be a pointer or a display (for example, a seven-segment display) for displaying the traveling speed of the stacker 2 according to the speed signal. The speed display unit 15 can be located on the control panel 221 in front of the driver's seat 22 so that the user can instantly read the traveling speed of the stacker 2.

It should be noted that the speed limit warning device 1 for transporting the vehicle in the present embodiment can be electrically connected to the stacker 2 to obtain the speed sensing unit 11, the control unit 12 or the warning ticket. The speed limit warning device 1 of the transport vehicle may further be provided with a battery (not shown) for supplying power to the speed sensing unit 11, the control unit 12 or the warning unit 13, Anyone with the usual knowledge in the field of creation can easily think about it.

In summary, the speed limit warning device of the present invention can promptly alert the user when the traveling speed of the moving vehicle approaches or exceeds the speed limit, and ensures that the speed of the moving vehicle is controlled within a speed limit, thereby avoiding driving. The risk involved in the speed is too fast, but it can improve the safety of the cargo transportation process.

Although the present invention has been disclosed by the above-described preferred embodiments, it is not intended to limit the present invention, and it is still within the spirit and scope of the present invention to make various changes and modifications to the above embodiments. The technical scope of the protection is created, so the scope of protection of this creation is subject to the definition of the patent application scope attached.

1‧‧‧Speed limit warning device for transporting vehicles

11‧‧‧Speed sensing unit

12‧‧‧Control unit

13‧‧‧Warning unit

14‧‧‧speed limit adjustment unit

15‧‧‧Speed display unit

Claims (10)

A speed limit warning device for transporting a vehicle, disposed in a body of a transport vehicle, comprising: a speed sensing unit for sensing a traveling speed of the transporting vehicle and generating a speed signal; and a control unit coupled The speed sensing unit is connected to receive the speed signal, the control unit stores a speed limit, and the control unit can compare the speed signal with the speed limit; and a warning unit coupled to the control And a unit to generate a warning message when the control unit determines that the traveling speed of the moving vehicle is greater than the speed limit. The speed limit warning device for transporting a vehicle according to claim 1, wherein the vehicle body of the transport vehicle is combined with a wheel, and the speed sensing unit is a Hall sensor, a rotary encoder or an optical tachometer. The utility model is configured to measure the rotation speed of the wheel, and calculate the traveling speed of the transportation vehicle according to the outer diameter of the wheel, thereby generating the speed signal. The speed limit warning device for transporting a vehicle according to the second aspect of the invention, wherein the speed sensing unit is an optical tachometer, comprising a reflector and a sensor, the reflector is fixed to the wheel, The sensor is fixed to a position of the vehicle body adjacent to the wheel. When the wheel rotates to minimize the distance between the reflector and the sensor, the reflector will be along the axial direction of the wheel and the sensing The devices are aligned with each other. The speed limit warning device for transporting a vehicle according to claim 1, wherein the control unit controls the warning unit to issue another warning message when the traveling speed of the transport vehicle is close to or equal to the speed limit. The speed limit warning device for transporting a vehicle according to claim 4, wherein the control unit calculates a reference value by using the speed limit value, and the control unit can compare the speed signal with the reference value, As the speed of the moving vehicle Whether the degree is close to the criterion for determining the speed limit. The speed limit warning device for transporting a vehicle according to claim 1, wherein the warning unit is a buzzer or a horn for generating a warning sound as the warning message. The speed limit warning device for transporting a vehicle according to claim 1, wherein the warning unit is a light-emitting element or a screen for generating a warning light number as the warning message. The speed limit warning device for transporting a vehicle according to any one of claims 1 to 7, wherein the speed limit is preset to be stored in the control unit. The speed limit warning device for transporting a vehicle according to any one of claims 1 to 7, further comprising a speed limit adjustment unit for the user to input a message to generate a speed limit adjustment signal, the speed The limit adjustment unit is coupled to the control unit, so that the control unit can receive the speed limit adjustment signal and set the speed limit accordingly. The speed limit warning device for transporting a vehicle according to any one of claims 1 to 7, further comprising a speed display unit coupled to the control unit to receive the speed sensing unit The speed signal is used to display the traveling speed of the moving vehicle according to the speed signal.