EA005196B1 - Device for measuring and weight indication of transport means - Google Patents

Abstract

1. The weight measurement and indication device for vehicle, containing a system of strain gage transducers, each of which is connected through the data link with the information processing facility on the basis of the microprocessor supplied with the-measurement results indication facility, characterized in that the strain gage transducer is located in a pneumatic system of each pad of each suspension of a vehicle, and the information processing facility with indication facility is executed as the image and digital information indication electronic device and supplied with a facility of indication mode selection. 2. The device according to Claim 1, characterized in that the electronic indication device is executed with an opportunity of the image and digital information indication in the indication mode of the vehicle full weight. 3. The device according to any of Claims 1 or 2, characterized in that the electronic indication device is executed with an opportunity of the image and digital information indication in the indication mode of loading on each axis of the vehicle. 4. The device according to any of Claims 1 or 2, characterized in that the electronic indication device is executed with an opportunity of the image and digital information indication hi the indication mode of loading on each wheel of the vehicle. 5. The device according to any of Claims 1 - 4, characterized in that it contains the real time clock having a function of the alarm clock and, at least, one additional gage chosen from a group, including a temperature-sensing device in a cabin of the vehicle, a temperature-sensing device in a cargo body of the vehicle, a temperature-sensing device of the environment, a gage of the non-authorized access with a sound signal. 6. The device according to Claim 5, characterized in that the electronic indication device is executed with an opportunity of the image and digital information indication, received from the real time clock having a function of the alarm clock and, at least, from one gage, chosen from a group, including a temperature-sensing device in a cabin of the vehicle, a temperature-sensing device in a cargo body of the vehicle, a temperature-sensing device of the environment. 7. The device according to any of Claims 1-6, characterized in that the data link is executed with an opportunity of link-up of the electronic indication device, at least, on two various sites of the link.

Description

The claimed invention relates to a weighing technique and can be used to determine and control with an indication of the total weight of the vehicle, and, consequently, the loading of the vehicle with distribution on the axis in both static and dynamic mode.

The issue of determining the weight of the vehicle is currently relevant in connection with the existence of restrictions on permissible axle loads on the vehicle, in particular when crossing the borders of various states. In addition, when transporting liquid (in tanks), bulk cargo, as well as cargo with different physical properties in one batch, there is a risk of uneven loading of the vehicle, i.e. uneven load distribution, both on the axis of the vehicle, and on individual wheels located on the same axis. Uneven load distribution negatively affects the vehicle’s performance, controllability, reduces the life of individual vehicle components, in particular, overloads, and can ultimately lead to vehicle malfunctions, breakdowns, and emergency situations, for example, when passing sections of roads with sharp turns or with difficult terrain.

To prevent vehicle overload and / or uneven loading in places where vehicles are loaded, stationary weighing devices are usually installed, which have passed the evolutionary path from the first mechanical weighing devices to electronic ones [1]. So, in particular, it is known a device for determining the weight of vehicles, containing a lifting unit with a measurement sensor and a measuring unit, which includes an indication unit, a microprocessor computing device and a control unit [2]. This device is a hydraulic system that is installed separately from the vehicle. Moreover, the described weighing method is based on lifting the vehicle. The use of electronics and computer technology to determine the weight of the vehicle and the load distribution on the axis allows you to get fairly accurate results. However, such devices are quite large and can only be used in stationary conditions.

To enable the installation of devices for measuring weight and load on the axle directly on the vehicle, electronic pressure sensors, in particular strain gauge sensors, which are placed directly in the vehicle’s systems that experience pressure depending on the weight of the vehicle itself and the load on its axis, have been used. Among the known devices for measuring load include the following.

Known transport weight device, which includes a system of strain gauges installed in the tires of the vehicle, as well as a system of pressure sensors, the sensitive elements of each of which are connected to the internal cavities of the tires [3]. In addition, the device includes a memory unit, a code-analog converter and an information display device. The device provides accurate results for determining the weight of the vehicle, but due to the presence of several types of sensors, it is unreasonably expensive and difficult to manufacture, install, configure and maintain.

Closest to the claimed device for measuring and indicating the weight of the vehicle for the totality of the essential features is a device for measuring and indicating the loading state of the saddle trailer [4]. The device includes a system of pressure or force sensors made in the form of, among other things, strain gauge sensors and located on the axles of the saddle trailer. The sensors are connected via a data transmission channel with an information processing means to an indicator device, which can be located either on the fifth wheel trailer itself, or using the corresponding connecting lines on the tractor control panel. The device provides accurate information about the loading status of the saddle trailer, in particular on the axles. At the same time, the device is easily controllable. However, in most cases, it is relevant to determine the weight of the vehicle as a whole (taking into account the weight of the trailer (s), cargo, as well as directly the tractor, driver’s cab, fuel tanks, engine, etc.), which the described device does not provide.

Thus, the object of the present invention is to provide a device for measuring and indicating the weight of a vehicle using strain gauges. The inventive device should provide the ability to measure the load on each axis of the vehicle, including the tractor and trailer (s), and on each wheel. This should increase the accuracy of the load measurement. Information on the results of measuring the load should be presented in the most convenient form for visual perception, while a multivariate mode of visualization of information should be provided. The device should have a simpler installation scheme (with the ability to change the installation location of the indicator), as well as simplified setup, use and maintenance.

The problem is solved by a device for measuring and indicating the weight of the vehicle, containing a system of strain gauges, each of which is connected via a data transmission channel to an information processing means equipped with a means of indicating measurement results due to the fact that the strain gauge is installed in the pneumatic system of each pillow of each vehicle suspension means, and the information processing means with the indication means is made in the form of an electronic display device graphic-digital in and it is provided with deformations of the display mode selecting means.

The installation of strain gauges in each pillow of each vehicle suspension allows you to obtain more accurate information about the load distribution along each individual axis, and along several axes and, most importantly, on the loading sides (right-left), as well as the total mass of the vehicle facilities. At the same time, the choice of a specific type of sensor can be easily carried out by a person skilled in the art, for example, based on the characteristics of the vehicle intended for installation (maximum load, type of vehicle, etc.), expected operating conditions, etc. .

Using an electronic device for displaying graphic-digital information allows you to visualize information in the most convenient way for the user to perceive. The convenience of perceiving information is further enhanced by the ability to provide a choice of visualization mode using the display mode selection tool, which is equipped with information processing means. The means of selecting the display mode in the General case may be a software and hardware tools known to specialists in this field of technology and suitable for use in a specific form of implementation of the inventive device.

In various embodiments of the inventive device, an electronic graphic-digital information display device is configured to display graphic-digital information in a display mode of the total mass of the vehicle or in a display mode of the load on each axis of the vehicle, or in a display mode of the load on each wheel of the vehicle. The indicated display modes can be, for example, as will be described in more detail below, a schematic representation of a vehicle in a certain projection for a certain display mode with information about weight or load placed in certain fields.

The inventive device may include a real-time clock with an alarm function and at least one additional sensor selected from the group including a temperature sensor in the vehicle cabin, a temperature sensor in the cargo compartment of a vehicle, an ambient temperature sensor, an unauthorized access sensor with a sound signal.

In this case, the electronic device for displaying graphic-digital information (hereinafter referred to as the electronic graphic indicator) is configured to display graphic-digital information received from a real-time clock with an alarm function and at least one sensor selected from the group including temperature sensor in the vehicle cabin, temperature sensor in the cargo compartment of the vehicle, ambient temperature sensor. To increase the convenience of perceiving information from such additional sensors, certain fields for each of them are usually highlighted on the screen. Digital information can be accompanied by graphical information, which gives a visual representation of which of the sensors are placed in this field of the indicator screen.

The use of additional sensors makes the claimed device more versatile than all known devices from the prior art. This, in turn, in combination with the choice of locations for installing strain gauge sensors, as well as with the method of visualizing information coming from sensors, primarily strain gauge sensors, significantly improves the operational characteristics of the device as a whole and distinguishes it from a number of similar solutions.

In addition to the advantages described above, the claimed device has a simple installation scheme and is mobile to use due to the fact that in a preferred embodiment, the data channel is configured to connect an electronic graphical indicator in at least two different portions of the channel. This makes it possible in the process of operation to effortlessly carry the indicator, for example, from the driver’s cab beyond and vice versa.

Below, the advantages and advantages of the proposed device for measuring and indicating the weight of the vehicle will be described in more detail and illustrated in one of the possible preferred, but not limiting, examples of implementation with reference to the position of the drawings, which show:

FIG. 1 is a diagram of an installation of a device for measuring and indicating a vehicle weight on a vehicle;

FIG. 2 - one of the preferred options for implementing the visualization of information using the indicator in one of the display modes;

FIG. 3 - an embodiment of the visualization of information using the indicator according to FIG. 2 in a different display mode.

In FIG. 1 schematically shows a vehicle containing a driver’s cabin 1, a cargo compartment 2, in which pneumatic suspension cushions 3 are equipped with strain gauges 4. The strain gauges 4 are connected by a data transmission channel 5 with a microprocessor-based information processing means, made in the form of an electronic graphic indicator 6 with means selection of the display mode, made in the form of a keyboard 7 (see Fig. 2, 3). In the data transmission channel 5, in this embodiment, three connectors 8 are provided, located both in the driver's cab and outside it, and designed to connect an indicator 6. The temperature sensors 9 in FIG. 1 of the implementation example are installed in the driver’s cab, in the cargo compartment, as well as outside the driver’s cab and are connected through the data transmission channel 5 with the indicator 6 by the corresponding lines 10. In this implementation example, an unauthorized access sensor 11 is also installed on the cargo compartment door and connected through channel 5 of data transfer with indicator 6 with the corresponding line 12. Lines 10 and 12 can be made in such a way as to ensure the transmission of information from temperature sensors 9 and sensor 11 is unauthorized of access, respectively, on display 6 at its location or only in the driver's cab, or in the driver's cab, and at any other point of connection indicator 6. Real-time clock with alarm function can be implemented as part of the microprocessor, and the figures are not represented.

In FIG. 2 schematically shows the appearance of the indicator 6 in the mode of indicating the load on each axis of the vehicle. In the upper part of the screen 13 of the indicator 6, a side view of the vehicle 14 is schematically shown, and the number of axles (wheels 15 in a side projection) shown on the screen 13 coincides with the number of axles of the vehicle on which the inventive device is installed. Under the schematic diagram of the axles of the vehicle 14 are fields 16 for information on the load on the respective axles. For clarity, in FIG. 2 and 3, all the mentioned fields are conditionally marked with a dashed line. On the screen 13 of indicator 6, fields 17 and 18 are also highlighted for placing information received, respectively, from temperature sensors (inside the driver’s cabin 1, inside the cargo compartment 2 and outside the vehicle) and real-time clocks. Field 19 is intended to indicate the time for setting the alarm. The indicator 6 is equipped with a display mode selection tool, made in this case, as already mentioned above, in the form of a keyboard 7 located on the front panel of the indicator 6 next to the screen 13. The keyboard 7 contains three keys 20. The functional purpose of the keys 20 is indicated by execution there are corresponding inscriptions on them: “RESET”, “SELECTION”, “ENTER”

In FIG. 3 schematically shows the appearance of the indicator 6 in the mode of indicating the load on each wheel of the vehicle. The main difference in this display mode is the schematic image at the top of the screen 13 of the indicator 6 of the vehicle 14 in a top view and the placement of load information for each wheel 15 in the corresponding fields 21. All other fields 16, 17, 18 and 19, as well as the keyboard 7 with keys 20 are located similarly to FIG. 2.

The inventive device for measuring and indicating the weight of the vehicle operates as follows.

Strain gauges 4 are installed in the pneumatic system of each pillow 3 of each vehicle suspension and connected to channel 5. Install temperature sensors 9 in the driver’s cabin 1, in the cargo compartment 2 and outside the vehicle, and using lines 10 connect to channel 5. On the cargo door of compartment 2, an unauthorized access sensor 11 is installed and connected via line 12 to channel 5. All of these sensors can be selected by a person skilled in the art based on, for example, their installation location on export means, the expected conditions of their operation, compatibility with the means of processing information and other conditions. Connectors 8 of any suitable type are installed in channel 5 (in this example, three connectors 8 are installed: one in the driver’s cabin and two outside and outside the cargo compartment, with connector 8 located between the driver’s cabin 1 and the vehicle’s cargo compartment 2 , in general, it is used not to connect indicator 6 directly, but to quickly and easily disconnect or connect part of the channel 5 located in the cargo compartment 2 in cases of disconnection of the cargo compartment 2, made in the form of a trailer, from tractor or, respectively, the connection of another cargo compartment 2).

The indicator 6 is connected to the connector 8 located in the cab 1 of the driver. In the initial (off) state, on the indicator screen 13 only the current time (field 18) and the alarm time (field 19) are displayed, if it has been set. In this mode, all sensors 4 and 9, as well as the backlight 13 are disabled. In the off state, the “SELECT” key of the keyboard 7 controls the backlight of the screen 13 (the backlight turns on after pressing this key).

When indicator 6 is turned on, in this implementation example, by pressing the “ENTER” key of keyboard 7, all sensors 4 and 9 are connected. By successive pressing of the “SELECT” key of keyboard 7, the required display mode is set (indication of the total weight of the vehicle, indication of the load on each axle of the vehicle means, indication on each wheel of the vehicle). On the screen 13 of indicator 6, depending on the display mode, information on the mass / load in the selected display mode appears in fields 16 or 21 (for example, in accordance with Fig. 2 or 3). In this case, digital information about the mass / load in fields 16 or 21 can be displayed as integers up to a kilogram, in particular in this example implementation with mass / load values up to 10 tons, or in decimal fractions with an accuracy of fractions of a ton, if the mass / load exceeds 10 tons in this case. The field capacity of fields 16 and 21 (4-bit fields) was chosen based on the values of the most common mass / load values. At the same time, in other implementation examples, other bit depths of fields 16 and 21 (for example, 5 or 6 bit fields) can be used, which will allow, if necessary, to reproduce information on screen 13 of indicator 6 with information accurate to a kilogram masses / loads over 10 tons

The lack of digital information in one of the fields or in several fields 16 or 21, especially when re-requesting information, indirectly may indicate the presence of malfunctions in the pneumatic system of the corresponding vehicle axis (s).

It should be noted that a schematic illustration of the vehicle 14 on which the device is installed, in the part of the image of the number of axles and / or wheels 15 is generated automatically each time the indicator 6 is turned on. So, for example, if the cargo compartment is made in the form of a trailer and is not mounted on a tractor , then on the screen 13 of indicator 6 only the tractor will be schematically shown.

The “RESET” key of the keyboard 7 is used to delete information displayed in the previous display mode from the screen 13, to update information in this display mode or to switch to other display modes by pressing the “SELECT” key of the keyboard 7, or to prepare the indicator 6 to turn off .

Thus, the minimum number of keys 20 of the keyboard 7 allows you to quickly and easily configure the indicator 6 to the desired display mode.

The inventive device for measuring and indicating the weight of the vehicle in this example implementation is also equipped with an audible warning device (not shown in the drawings), which can have several sound modes and is used to generate an audible alarm or security alarm.

Installation of the inventive device for measuring and indicating the weight of the vehicle as a whole on a vehicle takes about 40-60 minutes. In this case, it is possible to install the device, including on an already loaded vehicle.

Literature.

1. Products. The site of the company LLC PetroVes (St. Petersburg) [found 2003 05 14]. Found from the Internet 1Shr: // \\ l \ l \\ pc1gos5.gi /

2. Patent VI No. 2116630, publ.

07/27/1998.

3. Patent VI No. 2046300, publ.

10/20/1995.

4. Patent VI No. 2116207, publ. July 27, 1998.

CLAIM

Claims (6)

1. A device for measuring and indicating the weight of a vehicle, comprising a system of strain gauges, each of which is connected via a data transmission channel to a microprocessor-based information processing means equipped with a means for indicating measurement results, characterized in that the strain gauge is installed in the pneumatic system of each pillow of each the vehicle’s suspension, and the information processing means with the indication means is made in the form of an electronic graphic-digital information display device formation and is equipped with a means of selecting a display mode. 2. The device according to claim 1, characterized in that the electronic display device is configured to display graphical-digital information in the indication mode of the total mass of the vehicle. 3. The device according to any one of claims 1 or 2, characterized in that the electronic display device is configured to display graphical-digital information in the load indication mode on each axle of the vehicle. 4. The device according to any one of claims 1 or 2, characterized in that the electronic display device is configured to display graphical-digital information in the load indication mode on each wheel of the vehicle. 5. The device according to any one of claims 1 to 4, characterized in that it contains a real-time clock from at least one sensor selected from the group including a temperature sensor in the vehicle cabin, a temperature sensor in the cargo compartment of the vehicle, an external temperature sensor Wednesday. 7. The device according to any one of claims 1 to 6, characterized in that the data channel is configured to connect an electronic indicating device in at least two different portions of the channel. alarm function and at least one additional sensor selected from the group. including a temperature sensor in the vehicle cabin, a temperature sensor in the cargo compartment of the vehicle, an ambient temperature sensor, an unauthorized access sensor with an audible signal. 6. The device according to claim 5, characterized in that the electronic indicating device is configured to display graphical digital information received from the real-time clock with an alarm function and