Checkweigher

Abstract

The utility model provides a checkweigher comprising a weigher seat which is supported on the ground; the electronic scale is installed on the scale seat, a pressure sensor, a signal filter amplifier, an A / D converter, a single-chip microcomputer and a memory are arranged in the electronic scale, and the pressure sensor, the signal filter amplifier, the A / D converter, the single-chip microcomputer and the memory are electrically connected in sequence; the touch screen is installed on the scale seat, a face recognition lens is arranged at the top of the touch screen, and the touch screen penetrates through the scale seat through a wire and is electrically connected with a single chip microcomputer in the electronic scale; according to the invention, information of an owner can be identified, other people can be prevented from normally using the checkweigher without the operation of the owner, and the use authority can be set for other people, so that other people can be prevented from stealing the checkweigher for use.

Description

TECHNICAL FIELD

[0001] The utility model relates to weight detection equipment technical field especially relates to a check weigher. BACKGROUND

[0002] Modern industry weighing mainly consists of bearing system (such as scale table), force conversion system (such as sensor) and indicating system (such as display) three parts. Industrial weighing is widely used in industry, agriculture, commerce, foreign trade, transportation, medical treatment, health care, national defense construction and scientific research and various fields.

[0003] With the development of computer, automation control, microelectronics and other technologies, industrial weighing products have transitioned from the original mechanical weighing instrument dominated to the knowledge-intensive full-electronic weighing high-tech that integrates computer, microelectronics, information processing and automatic control and other mechanical and electrical technologies. Now the electronic equipment of all aspects is more and more close to intelligent design, but the existing check weigher cannot identify the owner information, so that other people can normally use the check weigher without the operation of the owner, and the use permission of other people cannot be intelligently identified.

[0004] Therefore, it is necessary to provide a check weigher to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a check weigher, which can identify the owner information, prevent other people from normally using the check weigher without the operation of the owner, set the use permission of other people, and further prevent other people from stealing and using the check weigher.

[0006] In order to achieve the above purpose, the technical scheme provided by the utility model is as follows: a check weigher, comprising:

[0007] A scale base is supported on the ground.

[0008] An electronic scale is installed on the scale base, and a pressure sensor, a signal filter amplifier, an A / D converter, a single-chip microcomputer and a storage are arranged inside the electronic scale, which are electrically connected in sequence.

[0009] A touch screen is installed on the scale base, and a face recognition lens is arranged on the top of the touch screen, and the touch screen is electrically connected with the single-chip microcomputer inside the electronic scale through wires passing through the scale base.

[0010] Preferably, the scale base comprises a base table and a stand, the touch screen is installed at the top of the stand, the bottom end of the stand is connected to the center of the base table, and the base table is placed on the ground.

[0011] Preferably, the stand column is hollow, and the touch screen is electrically connected with the single-chip microcomputer inside the electronic scale through wires passing through the stand column of the scale base.

[0012] Preferably, a middle section of the stand column is provided with a supporting table, the supporting table is vertically connected with the stand column, and the electronic scale is fixedly installed on the supporting table.

[0013] Preferably, the supporting table is provided with anti-collision side plates, the anti-collision side plates semi-enclose the outer ring of the electronic scale and are in contact with the outer wall of the electronic scale.

[0014] Preferably, the electronic scale comprises a scale body and a scale disc, the pressure sensor, the signal filter amplifier, the A / D converter, the single-chip microcomputer and the storage are all installed in the scale body, the scale disc is arranged on the scale body, and the pressure sensor is in contact with the scale disc.

[0015] Preferably, both sides of the touch screen are provided with heat dissipation holes.

[0016] Compared with the prior art, the beneficial effects are that 1) the owner information can be identified, and other people cannot normally use the checkweigher without the operation of the owner, the use permission of other people can be set, and thus the checkweigher can be prevented from being stolen and used by other people.

[0017] 2) The wire harness is arranged inside the stand column, and can avoid being entangled with external power supply wires, so that the wire harness is not disordered and the appearance is not affected.

[0018] 3) The anti-collision side plates semi-enclose the outer ring of the electronic scale, and can limit the electronic scale in the anti-collision side plates when playing the anti-collision role, so that the position of the electronic scale is prevented from being deviated.

[0019] Other features and advantages of the present application will be described in the following description, and some will be apparent from the description, or can be understood by the implementation of the present application. The features and advantages of the present application can be achieved and obtained by the elements and combinations specifically indicated in the appended claims. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings;

[0021] Figure 1 A perspective view of the checkweigher is provided.

[0022] Figure 2 AFigure 1 The principle block diagram of the checkweigher is shown.

[0023] Fig. 1 is a schematic view of the checkweigher according to the present application; Fig. 2 is a principle block diagram of the checkweigher. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and beneficial technical effects of the present application clearer, the present application will be further described in detail below in combination with the drawings and specific embodiments. It should be understood that the specific embodiments described in the present specification are only for the purpose of explaining the present application, and are not intended to limit the present application.

[0025] It should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0026] It should also be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing", "setting" and the like should be broadly understood, for example, they can be fixedly connected, or detachably connected, or integrated; they can be mechanically connected, or electrically connected; they can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second", "third" can explicitly or implicitly include one or more of the features. In addition, the meaning of "multiple", "several" is two or more, unless otherwise explicitly specified.

[0028] Please refer to Figures 1 to 2 The present application provides a checkweigher, comprising:

[0029] A scale base 1 is supported on the ground;

[0030] An electronic scale 2 is installed on the scale base 1, and a pressure sensor 21, a signal filter amplifier 22, an A / D converter 23, a single-chip microcomputer 24 and a storage 25 are arranged inside the electronic scale 2, and the pressure sensor 21, the signal filter amplifier 22, the A / D converter 23, the single-chip microcomputer 24 and the storage 25 are electrically connected in sequence.

[0031] A touch screen 3 is installed on the scale base 1, and a human face recognition lens 31 is arranged on the top of the touch screen 3, and the touch screen 3 is electrically connected with the single-chip microcomputer 24 inside the electronic scale 2 through wires passing through the scale base 1.

[0032] The owner of the checkweigher pre-records the human face information through the human face recognition lens 31 of the touch screen 3, and the recorded human face information is stored in the storage 25, and the human face image of the owner is displayed on the touch screen 3 when recording the human face information, and the touch screen 3 can be unlocked only when the human face information of the owner is consistent with the pre-recorded human face information, and the checkweigher can be normally used at this time.

[0033] When an object is placed on the electronic scale 2, the pressure sensor 21 of the electronic scale 2 converts the detected physical pressure into an electrical signal, the electrical signal is filtered and amplified by the signal filter amplifier 22, the A / D converter 23 converts the filtered and amplified electrical signal into a digital signal and sends it to the single-chip microcomputer 24, and the weight information is displayed on the touch screen 3.

[0034] It should be noted that the model of the pressure sensor 21 can be MPX5010, the model of the signal filter amplifier 22 can be any one of LM358DR2G and LM324, the model of the A / D converter 23 can be AD578, and the model of the single-chip microcomputer 24 can be any one of STM8L101, STM8L151 and STM8L162.

[0035] In a preferred embodiment, the scale base 1 includes a base table 11 and a stand 12, the touch screen 3 is installed at the top end of the stand 12, the bottom end of the stand 12 is connected to the center of the base table 11 perpendicularly, and the base table 11 is placed on the ground.

[0036] The size of the base table 11 can be designed to be larger than that of the electronic scale 2 and the touch screen 3, and through such design, the contact area of the base table 11 with the ground can be increased, which can be beneficial to ensure the balance of the checkweigher when the base table 11 contacts the ground.

[0037] In a preferred embodiment, the stand 12 is of a hollow design, and the touch screen 3 is electrically connected to the single-chip microcomputer 24 inside the electronic scale 2 through wires passing through the stand 12 of the scale base 1. In this way, by arranging the wire harness inside the stand 12, the wire harness can be prevented from being entangled with the external power supply line, so as to avoid affecting the appearance due to the disordered wire harness.

[0038] In a preferred embodiment, the middle section of the stand 12 is provided with a support table 13, which is vertically connected with the stand 12, and the electronic scale 2 is fixedly installed on the support table 13. In this way, the electronic scale 2 can be conveniently fixed, and the user can conveniently take away the weighed object without bending over when weighing.

[0039] In a preferred embodiment, the support table 13 is provided with a U-shaped anti-collision side plate 14, which half-encloses the outer circle of the electronic scale 2 and is in contact with the outer wall of the electronic scale 2 when the electronic scale 2 is fixedly installed on the support table 13. It should be noted that in this embodiment, the anti-collision side plate 14 is made of soft materials such as plastic, rubber, and silicone, which can not only play a role in preventing collision, but also limit the position of the electronic scale 2, so as to prevent the position of the electronic scale 2 from deviating.

[0040] In a preferred embodiment, the electronic scale 2 includes a scale body 26 and a scale disc 27, the pressure sensor 21, the signal filter amplifier 22, the A / D converter 23, the single-chip microcomputer 24, and the storage 25 are all installed in the scale body 26, and the scale disc 27 is arranged on the scale body 26, and the pressure sensor 21 is in contact with the scale disc 27. In this way, when an object is placed on the scale disc 27 of the electronic scale 2, the pressure sensor 21 of the electronic scale 2 converts the detected physical pressure into an electrical signal, which is sent to the single-chip microcomputer 24 for processing, and then the weight information is displayed on the touch screen 3.

[0041] In a preferred embodiment, the two sides of the touch screen 3 are provided with heat dissipation holes 32, which are beneficial to heat dissipation of the internal components of the touch screen 3, and thus are beneficial to long-term operation of the touch screen 3 under the condition of external power supply being powered on.

[0042] When in use, the owner of the checkweigher pre-records the face information through the face recognition lens 31 of the touch screen 3, and the recorded face information is stored in the storage 25. When recording the face information, the face image of the owner is displayed on the touch screen 3. When in use, the face information of the owner needs to be consistent with the pre-recorded face information, and then the touch screen 3 will be unlocked, and at this time the checkweigher can be normally used.

[0043] When there is an object on the electronic scale 2, the pressure sensor 21 of the electronic scale 2 converts the detected physical pressure into an electrical signal, the electrical signal is filtered and amplified by the signal filter amplifier 22, the filtered and amplified electrical signal is converted into a digital signal by the A / D converter 23 and sent to the single-chip microcomputer 24, and the weight information is displayed on the touch screen 3. In this way, the owner information can be identified, and other people can be prevented from normally using the weight checking scale without the operation of the owner. The use permission of other people can be set, and thus the weight checking scale can be prevented from being stolen and used by other people.

[0044] The utility model is not limited to the description in the specification and the embodiment, thus other advantages and modifications can be easily realized by those skilled in the art, and the utility model is not limited to specific details, representative equipment and the illustrated examples shown and described herein without departing from the spirit and scope of the general concept defined by the claims and equivalent ranges.

Claims

1. A checkweigher characterised in that, Include: The scale seat (1) is supported on the ground; Electronic scale (2), the electronic scale (2) is installed on the scale seat (1), and the electronic scale (2) is provided with a pressure sensor (21), a signal filter amplifier (22), an A / D converter (23), a single-chip microcomputer (24) and a storage (25) inside, the pressure sensor (21), the signal filter amplifier (22), the A / D converter (23), the single-chip microcomputer (24) and the storage (25) are electrically connected in sequence; Touch screen (3), the touch screen (3) is installed on the scale seat (1), the top of the touch screen (3) is provided with a face recognition lens (31), and the touch screen (3) is electrically connected with the single-chip microcomputer (24) inside the electronic scale (2).

2. The checkweigher of claim 1 wherein, The scale seat (1) includes a base (11) and a column (12), the touch screen (3) is installed at the top of the column (12), the bottom end of the column (12) is connected to the center of the base (11), and the base (11) is placed on the ground.

3. A checkweigher as claimed in claim 2, characterised in that, The column (12) is designed as hollow, the touch screen (3) is electrically connected with the single-chip microcomputer (24) inside the electronic scale (2) through the lead wire passing through the column (12) of the scale seat (1).

4. The checkweigher of claim 2 wherein, The middle segment of the column (12) is provided with a support table (13), the support table (13) is connected with the column (12) perpendicularly, and the electronic scale (2) is fixedly installed on the support table (13).

5. A checkweigher as claimed in claim 4, characterised in that, The anti-collision side plate (14) is arranged on the support table (13), and the anti-collision side plate (14) is half surrounded by the outer ring of the electronic scale (2) and in contact with the outer wall of the electronic scale (2).

6. The checkweigher of claim 1 wherein, The electronic scale (2) includes a scale body (26) and a scale disc (27), the pressure sensor (21), the signal filter amplifier (22), the A / D converter (23), the single-chip microcomputer (24) and the storage (25) are all installed in the scale body (26), the scale disc (27) is arranged on the scale body (26), and the pressure sensor (21) is in contact with the scale disc (27).

7. The checkweigher of claim 1 wherein, The both sides of the touch screen (3) are provided with heat dissipation holes (32).

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