CN220855671U

CN220855671U - Handheld portable asset inventory device with map visualization function

Info

Publication number: CN220855671U
Application number: CN202322684078.7U
Authority: CN
Inventors: 侯明珠; 钟晓峰; 陈凯; 孙泽桂
Original assignee: Guangdong Provincial Bank Of Communications Co ltd
Current assignee: Guangdong Provincial Bank Of Communications Co ltd
Priority date: 2023-10-07
Filing date: 2023-10-07
Publication date: 2024-04-26
Anticipated expiration: 2033-10-07

Abstract

The utility model discloses handheld portable asset inventory equipment with a map visualization function, and relates to the technical field of asset inventory. The device comprises a handheld portable shell, a circuit board, a display screen and at least two omnidirectional antennas, wherein the circuit board is arranged in the handheld portable shell and is provided with at least two ultrahigh frequency RFID reading circuits, a positioning algorithm running circuit, a map information storage circuit and an electronic map loading circuit, the display screen is arranged at the top of the handheld portable shell and obliquely faces to a device holder, the at least two omnidirectional antennas are respectively arranged at the front of the handheld portable shell and can provide a map visualization function for specific positions of inventory asset targets through connection relations of the circuits, so that the device holder can be helped to quickly perceive the specific positions of inventory asset targets, inventory efficiency is improved, required labor cost is reduced, and practical application and popularization are facilitated.

Description

Handheld portable asset inventory device with map visualization function

Technical Field

The utility model belongs to the technical field of asset inventory, and particularly relates to handheld portable asset inventory equipment with a map visual function.

Background

Existing asset management is typically managed in a tag-based manner, i.e., by reading asset tags. Because the asset may be transferred, this may result in the asset being unable to be located specifically after movement, requiring personnel to go to the field to inventory the asset one by one. Even if the management of the assets is assisted by using an RFID (Radio Frequency Identification ) technology, the inventory personnel can only acquire general asset inventory information, such as asset types, corresponding amounts and the like, but cannot accurately acquire the positions of the assets after movement (namely, the conventional asset inventory equipment based on the RFID technology is generally only integrated with a single RFID reading module, can only read information stored by an RFID electronic tag, so that the function is relatively simple, and the requirement on the reading distance and the sensitivity of signals is not too high), so that the specific positions of the assets after movement are required to be manually found, and thus the conventional asset inventory equipment based on the RFID technology obviously has the problems of simple function, low inventory efficiency and high required labor cost.

Disclosure of utility model

The utility model aims to provide handheld portable asset counting equipment with a map visualization function, which is used for solving the problems of simple function, low counting efficiency and high required labor cost of the conventional asset counting equipment based on the RFID technology.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

In a first aspect, a handheld portable asset inventory device with a map visualization function is provided, including a handheld portable housing, a circuit board, a display screen, a first omni-directional antenna and a second omni-directional antenna, wherein the circuit board is mounted inside the handheld portable housing and is provided with a first ultrahigh frequency RFID reading circuit, a second ultrahigh frequency RFID reading circuit, a positioning algorithm running circuit, a map information storage circuit and an electronic map loading circuit, the display screen is mounted on the top of the handheld portable housing and is obliquely arranged facing a device holder, and the first omni-directional antenna and the second omni-directional antenna are respectively mounted in the front of the handheld portable housing and are mutually perpendicular in a horizontal plane;

The first omnidirectional antenna is electrically connected with the first ultrahigh frequency RFID reading circuit, the second omnidirectional antenna is electrically connected with the second ultrahigh frequency RFID reading circuit, the first ultrahigh frequency RFID reading circuit and the second ultrahigh frequency RFID reading circuit are respectively and electrically connected with the positioning algorithm running circuit, and the electronic map loading circuit is respectively and electrically connected with the positioning algorithm running circuit, the map information storage circuit and the display screen.

Based on the above summary, a novel asset checking device is provided, which combines two pairs of omni-directional antennas and an ultrahigh frequency RFID reading circuit to perform asset checking positioning and electronic map loading display, namely, the novel asset checking device comprises a handheld portable shell, a circuit board, a display screen, a first omni-directional antenna and a second omni-directional antenna, wherein the circuit board is installed inside the handheld portable shell and is provided with the first ultrahigh frequency RFID reading circuit, the second ultrahigh frequency RFID reading circuit, a positioning algorithm running circuit, a map information storage circuit and an electronic map loading circuit, the display screen is installed at the top of the handheld portable shell and is obliquely arranged facing to a device holder, and the first omni-directional antenna and the second omni-directional antenna are respectively installed at the front part of the handheld portable shell and are mutually perpendicular in the horizontal plane, and can provide the function of performing map visualization on the specific position of an asset checking target through the connection relation of the circuits, so that a device holder can quickly perceive the specific position of the asset checking target, thereby being beneficial to improving the efficiency of the manual checking and reducing the required labor cost and practical application.

In one possible design, a third omnidirectional antenna intersecting the horizontal plane is further mounted on the front portion of the handheld portable housing, and a third ultrahigh frequency RFID reading circuit is further arranged on the circuit board, wherein the third omnidirectional antenna is electrically connected with the third ultrahigh frequency RFID reading circuit, and the third ultrahigh frequency RFID reading circuit is electrically connected with the positioning algorithm running circuit.

In one possible design, an inventory device positioning circuit is also disposed on the circuit board, wherein the inventory device positioning circuit is electrically connected to the electronic map loading circuit.

In one possible design, a battery is installed inside the handheld portable housing, wherein the battery is electrically connected to the first ultrahigh frequency RFID reading circuit, the second ultrahigh frequency RFID reading circuit, the positioning algorithm running circuit, the map information storage circuit, the electronic map loading circuit, and the power supply end of the display screen, respectively.

In one possible design, the battery is mounted inside a handle of the hand-held portable housing, and a charging interface is provided at the bottom of the handle that electrically connects the battery.

In one possible embodiment, a start/stop switch is embedded in the contact surface of the index finger of the hand grip, wherein the start/stop switch is connected in series between the output end of the battery and the power supply end.

In one possible design, the first UHF RFID reading circuit or the second UHF RFID reading circuit is implemented using a UHF RFID reader module of model THINGMAGIC M e-Micro and its peripheral circuitry.

In one possible design, the positioning algorithm running circuit or the electronic map loading circuit is implemented using a microprocessor chip of model Broadcom BCM2711 and its peripheral circuits.

In one possible design, the display is implemented using a 5 inch capacitive touch screen model CTP-P050001 GG.

The second aspect also provides another handheld portable asset inventory device with a map visualization function, which comprises a handheld portable shell, a circuit board, a display screen, a first omni-directional antenna, a second omni-directional antenna, a third omni-directional antenna and a fourth omni-directional antenna, wherein the circuit board is installed inside the handheld portable shell and is provided with a first ultrahigh frequency RFID reading circuit, a second ultrahigh frequency RFID reading circuit, a third ultrahigh frequency RFID reading circuit, a fourth ultrahigh frequency RFID reading circuit, a positioning algorithm running circuit, a map information storage circuit and an electronic map loading circuit, the display screen is installed at the top of the handheld portable shell and is obliquely arranged facing to a device holder, the first omni-directional antenna and the second omni-directional antenna are respectively installed at the left side of the front of the handheld portable shell and are mutually perpendicular, the third omni-directional antenna and the fourth omni-directional antenna are respectively installed at the right side of the front of the handheld portable shell and are mutually perpendicular, and the plane of the first omni-directional antenna and the second omni-directional antenna and the fourth omni-directional antenna are mutually perpendicular to the plane of the fourth omni-directional antenna;

The first omnidirectional antenna is electrically connected with the first ultrahigh frequency RFID reading circuit, the second omnidirectional antenna is electrically connected with the second ultrahigh frequency RFID reading circuit, the third omnidirectional antenna is electrically connected with the third ultrahigh frequency RFID reading circuit, the fourth omnidirectional antenna is electrically connected with the fourth ultrahigh frequency RFID reading circuit, the first ultrahigh frequency RFID reading circuit, the second ultrahigh frequency RFID reading circuit, the third ultrahigh frequency RFID reading circuit and the fourth ultrahigh frequency RFID reading circuit are respectively electrically connected with the positioning algorithm operation circuit, and the electronic map loading circuit is respectively electrically connected with the positioning algorithm operation circuit, the map information storage circuit and the display screen.

The beneficial effect of above-mentioned scheme:

(1) The invention provides novel asset checking equipment for combining at least two pairs of omnidirectional antennas and an ultrahigh frequency RFID reading circuit to perform asset checking positioning and electronic map loading display, which comprises a handheld portable shell, a circuit board, a display screen, a first omnidirectional antenna and a second omnidirectional antenna, wherein the circuit board is arranged in the handheld portable shell and is provided with the first ultrahigh frequency RFID reading circuit, the second ultrahigh frequency RFID reading circuit, a positioning algorithm running circuit, a map information storage circuit and an electronic map loading circuit;

(2) The problem that the conventional common asset checking equipment cannot locate assets can be solved, checking staff can be helped to quickly finish a real object confirmation link in fixed asset checking, further, checking time cost can be saved, and checking working efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic top view of a first handheld portable asset inventory device with map visualization according to an embodiment of the present application.

Fig. 2 is a schematic diagram of a left side view of a first handheld portable asset inventory device according to an embodiment of the application.

Fig. 3 is a schematic circuit diagram of a first handheld portable asset inventory device according to an embodiment of the present application.

Fig. 4 is a schematic top view of a second handheld portable asset inventory device with map visualization according to an embodiment of the present application.

Fig. 5 is a schematic diagram of a left side view of a second handheld portable asset inventory device according to an embodiment of the application.

Fig. 6 is a schematic diagram of a right side view of a second handheld portable asset inventory device according to an embodiment of the application.

Fig. 7 is a schematic circuit diagram of a second handheld portable asset inventory device according to an embodiment of the present application.

In the above figures: 1-a hand-held portable housing; 11-a hand-held grip; 111-a start-stop switch key; 3-a display screen; 41-a first omni-directional antenna; 42-a second omni-directional antenna; 43-a third omni-directional antenna; 44-fourth omni-directional antenna.

Detailed Description

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the embodiments of the present utility model will be briefly described below with reference to the drawings and the description of the embodiments or the prior art, and it is apparent that the following descriptions of the structures of the drawings are only some embodiments of the present utility model, and other descriptions of embodiments may be obtained according to the descriptions of the embodiments without inventive effort for those skilled in the art. It should be noted that the description of these examples is for aiding in understanding the present utility model, but is not intended to limit the present utility model.

It should be understood that although the terms first and second, etc. may be used herein to describe various objects, these objects should not be limited by these terms. These terms are only used to distinguish one object from another. For example, a first object may be referred to as a second object, and similarly a second object may be referred to as a first object, without departing from the scope of example embodiments of the application.

It should be understood that for the term "and/or" that may appear herein, it is merely one association relationship that describes an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: three cases of A alone, B alone or both A and B exist; as another example, A, B and/or C may represent the presence of any one of A, B and C or any combination thereof; for the term "/and" that may appear herein, which is descriptive of another associative object relationship, it means that there may be two relationships, e.g., a/and B, it may be expressed that: the two cases of A and B exist independently or simultaneously; in addition, for the character "/" that may appear herein, it is generally indicated that the context associated object is an "or" relationship.

Example 1

As shown in fig. 1 to 3, the first handheld portable asset inventory device provided by the present embodiment and having the map visualization function includes, but is not limited to, a handheld portable housing 1, a circuit board, a display screen 3, a first omni-directional antenna 41 and a second omni-directional antenna 42, wherein the circuit board is mounted inside the handheld portable housing 1 and is provided with a first ultra-high frequency RFID reading circuit, a second ultra-high frequency RFID reading circuit, a positioning algorithm running circuit, a map information storage circuit and an electronic map loading circuit, the display screen 3 is mounted on the top of the handheld portable housing 1 and is obliquely arranged facing to a device holder, and the first omni-directional antenna 41 and the second omni-directional antenna 42 are respectively mounted on the front of the handheld portable housing 1 and are mutually perpendicular in a horizontal plane; the first omni-directional antenna 41 is electrically connected with the first ultrahigh frequency RFID reading circuit, the second omni-directional antenna 42 is electrically connected with the second ultrahigh frequency RFID reading circuit, the first ultrahigh frequency RFID reading circuit and the second ultrahigh frequency RFID reading circuit are respectively electrically connected with the positioning algorithm operation circuit, and the electronic map loading circuit is respectively electrically connected with the positioning algorithm operation circuit, the map information storage circuit and the display screen 3.

As shown in fig. 1 to 3, in the specific structure of the hand-held portable asset inventory device, the hand-held portable housing 1 is used for being convenient for the device holder to hold and use the whole device, and as shown in fig. 2, the hand-held portable asset inventory device can be realized by adopting a common electron gun body housing structure but not limited to the hand-held portable asset inventory device. The circuit board (not shown in the figures) is used to carry all of the specific circuitry, which may be implemented using existing PCB (Printed Circuit Board ) boards. The first ultrahigh frequency RFID reading circuit and the second ultrahigh frequency RFID reading circuit are respectively used for transmitting electromagnetic waves to provide energy for the passive RFID tag on the asset side through the corresponding connected omnidirectional antenna based on the conventional RFID technology, acquiring the unique identification of the passive RFID tag on the asset side and stored asset inventory related information from radio frequency signals fed back by the passive RFID tag on the asset side, and conventionally transmitting the transceiving time information to the positioning algorithm operation circuit in real time; specifically, the first ultrahigh frequency RFID reading circuit or the second ultrahigh frequency RFID reading circuit can be realized by adopting an ultrahigh frequency RFID reader module with the model number of THINGMAGIC M e-Micro and peripheral circuits thereof, but is not limited to. The positioning algorithm running circuit is used for running the existing positioning algorithm (for example, the existing time difference positioning algorithm is used for determining the receiving and transmitting distance according to the receiving and transmitting time difference, then respectively drawing circles in a plane by taking the two receiving and transmitting distances as radiuses, finally determining the two-dimensional coordinate position of the asset side passive RFID tag relative to the inventory device by taking all intersection points of the two circles or the intersection point of the two circles far as a positioning result), and conventionally transmitting the two-dimensional coordinate position to the electronic map loading circuit in real time; in particular, the positioning algorithm operating circuit may be implemented, but not limited to, using a microprocessor chip of the model Broadcom BCM2711 and its peripheral circuits. The electronic map loading circuit is used for conventionally reading pre-stored electronic map information (such as radar map information and the like) from the map information storage circuit, then conventionally loading the two-dimensional coordinate position into the electronic map information, and finally transmitting the new electronic map information obtained by loading to the display screen 3 in real time; specifically, the electronic map loading circuit may be implemented by, but not limited to, a microprocessor chip with a model Broadcom BCM2711 and its peripheral circuits (the positioning algorithm running circuit and the electronic map loading circuit may be separate circuits or integrated microprocessor circuits). The map information storage circuit is used for storing electronic map information and storing related information (for example, storing unique identification of an asset side passive RFID tag and stored asset inventory related information for an ultrahigh frequency RFID reading circuit, storing a positioning algorithm program for a positioning algorithm running circuit and storing an electronic map loading program for an electronic map loading circuit, etc.); in particular, the map information storage circuit may be implemented, but is not limited to, using an existing SDRAM (Synchronous Dynamic Random-Access Memory) Memory or micro SD (Secure Digital Memory Card ) card. The display screen 3 is used for outputting and displaying the new electronic map information to the equipment holder in a conventional manner, so that the whole inventory equipment can provide a function of carrying out map visualization on the specific position of the inventory asset target (the position of the asset side passive RFID tag, namely the position of the inventory asset target, because the inventory asset target is bound with the asset side passive RFID tag), and further help the equipment holder to quickly sense the specific position of the inventory asset target, thereby being beneficial to improving inventory efficiency and reducing required labor cost; specifically, the display screen 3 may be, but is not limited to, a 5-inch capacitive touch screen with a model number CTP-P050001 GG. In addition, the first omni-directional antenna 41 and the second omni-directional antenna 42 are respectively used for increasing the radio frequency scanning distance and the sensitivity to electromagnetic radio frequency signals of the correspondingly connected reading circuit; specifically, the first omni-directional antenna 41 or the second omni-directional antenna 42 may be, but not limited to, a retractable omni-directional antenna similar to a radio antenna, so as to flexibly adjust the inventory range of the asset and facilitate portability, thereby further improving practicability.

From this, based on the aforesaid handheld portable asset checking equipment, provide a combination two pairs of omnidirectional antenna and ultra-high frequency RFID reading circuit and carry out novel asset checking equipment of checking asset location and carrying out electronic map loading show, promptly including handheld portable casing, circuit board, display screen, first omnidirectional antenna and second omnidirectional antenna, wherein, the circuit board is installed the inside of handheld portable casing and has arranged first ultra-high frequency RFID reading circuit, second ultra-high frequency RFID reading circuit, location algorithm running circuit, map information storage circuit and electronic map loading circuit, the display screen is installed the top of handheld portable casing and set up towards equipment holder slope, first omnidirectional antenna with second omnidirectional antenna installs respectively the front portion of handheld portable casing and be mutually perpendicular in the horizontal plane to through the relation of connection of aforementioned circuit, can provide the specific position to check the asset target and carry out the visual function, and then can help the equipment holder to perceive the specific position of checking the asset target fast, does benefit to improving and checks efficiency and reduces required manpower and practical application and map cost.

Preferably, a third omnidirectional antenna 43 intersecting with the horizontal plane is further installed at the front part of the handheld portable housing 1, and a third ultrahigh frequency RFID reading circuit is further arranged on the circuit board, wherein the third omnidirectional antenna 43 is electrically connected with the third ultrahigh frequency RFID reading circuit, and the third ultrahigh frequency RFID reading circuit is electrically connected with the positioning algorithm running circuit. As shown in fig. 1 to 3, the third ultrahigh frequency RFID reading circuit is also configured to transmit electromagnetic waves through an omni-directional antenna correspondingly connected to provide energy for the passive RFID tag on the asset side, obtain the unique identifier of the passive RFID tag on the asset side and stored information related to the inventory of the asset from the radio frequency signal fed back by the passive RFID tag on the asset side, and conventionally transmit the transceiving time information to the positioning algorithm running circuit in real time. Therefore, the positioning algorithm running circuit can run the existing three-point positioning algorithm to determine the three-dimensional coordinate position of the passive RFID tag on the asset side relative to the inventory equipment according to the receiving and transmitting time information from the three-reading circuit, and the aims of further improving the positioning result precision and the mapping display effect are achieved. Likewise, the third UHF RFID reader circuit may be implemented with, but not limited to, a UHF RFID reader module of model THINGMAGIC M e-Micro and its peripheral circuitry, and the third omni-directional antenna 43 may be implemented with, but not limited to, a retractable omni-directional antenna such as a radio antenna.

Preferably, a checking device positioning circuit is further arranged on the circuit board, wherein the checking device positioning circuit is electrically connected with the electronic map loading circuit. The checking device positioning circuit is used for acquiring the position information of the checking device in real time based on the existing indoor positioning technology or the outdoor positioning technology, and conventionally transmitting the position information to the electronic map loading circuit, so that the electronic map loading circuit also conventionally loads the position information into the new electronic map information, a device holder can also sense the current position, the specific position of the checking asset target can be further sensed, and the map visualization function of the device is optimized.

Preferably, a battery is installed in the handheld portable shell 1, wherein the battery is electrically connected with the first ultrahigh frequency RFID reading circuit, the second ultrahigh frequency RFID reading circuit, the positioning algorithm running circuit, the map information storage circuit, the electronic map loading circuit and the power supply end of the display screen 3 respectively. The battery may be, but not limited to, a lithium battery, specifically, the battery is mounted inside the handle 11 of the hand-held portable housing 1, and a charging interface electrically connected to the battery is provided at the bottom of the handle 11. As shown in fig. 2 and fig. 3, in order to achieve the purpose of one-key start-stop of the present inventory device, it is further preferable that a start-stop switch key 111 is embedded on the contact surface of the index finger of the hand-held handle 11, where the start-stop switch key 111 is connected in series between the output end of the battery and the power supply end. In addition, the battery can be electrically connected with the power supply ends of the third ultrahigh frequency RFID reading circuit and the checking device positioning circuit so as to achieve the purpose of global power supply.

In summary, the handheld portable asset inventory device provided by the embodiment has the following technical effects:

(1) The embodiment provides novel asset checking equipment for combining at least two pairs of omnidirectional antennas and an ultrahigh frequency RFID reading circuit to perform asset checking positioning and electronic map loading display, namely, the novel asset checking equipment comprises a handheld portable shell, a circuit board, a display screen, a first omnidirectional antenna and a second omnidirectional antenna, wherein the circuit board is installed inside the handheld portable shell and is provided with the first ultrahigh frequency RFID reading circuit, the second ultrahigh frequency RFID reading circuit, a positioning algorithm running circuit, a map information storage circuit and an electronic map loading circuit, the display screen is installed at the top of the handheld portable shell and is obliquely arranged facing to a holder of the equipment, the first omnidirectional antenna and the second omnidirectional antenna are respectively installed at the front of the handheld portable shell and are mutually perpendicular in a horizontal plane, and through the connection relation of the circuits, the function of map visualization can be provided for specific positions of the asset checking targets, so that a holder of the equipment can be helped to quickly perceive the specific positions of the asset checking targets, the improvement of efficiency and the reduction of required labor cost, and the practical application and popularization are facilitated.

Example two

As shown in fig. 4 to 7, the present embodiment further provides another handheld portable asset inventory device having a map visualization function, including, but not limited to, a handheld portable housing 1, a circuit board, a display screen 3, a first omni-directional antenna 41, a second omni-directional antenna 42, a third omni-directional antenna 43 and a fourth omni-directional antenna 44, wherein the circuit board is mounted inside the handheld portable housing 1 and is provided with a first ultra-high frequency RFID reading circuit, a second ultra-high frequency RFID reading circuit, a third ultra-high frequency RFID reading circuit, a fourth ultra-high frequency RFID reading circuit, a positioning algorithm operating circuit, a map information storage circuit and an electronic map loading circuit, the display screen 3 is mounted on the top of the handheld portable housing 1 and is inclined towards a device holder, the first omni-directional antenna 41 and the second omni-directional antenna 42 are respectively mounted on the left front side of the handheld portable housing 1 and are mutually perpendicular, the third omni-directional antenna 43 and the fourth omni-directional antenna 44 are respectively mounted on the right side of the handheld portable housing 1 and the first omni-directional antenna 42 and the fourth omni-directional antenna 44 are mutually perpendicular to each other; the first omni-directional antenna 41 is electrically connected with the first ultrahigh frequency RFID reading circuit, the second omni-directional antenna 42 is electrically connected with the second ultrahigh frequency RFID reading circuit, the third omni-directional antenna 43 is electrically connected with the third ultrahigh frequency RFID reading circuit, the fourth omni-directional antenna 44 is electrically connected with the fourth ultrahigh frequency RFID reading circuit, the first ultrahigh frequency RFID reading circuit, the second ultrahigh frequency RFID reading circuit, the third ultrahigh frequency RFID reading circuit and the fourth ultrahigh frequency RFID reading circuit are respectively electrically connected with the positioning algorithm operation circuit, and the electronic map loading circuit is respectively electrically connected with the positioning algorithm operation circuit, the map information storage circuit and the display screen 3. The specific details of the aforementioned handheld portable housing 1, the circuit board, the display 3, the first omni-directional antenna 41, the second omni-directional antenna 42, the third omni-directional antenna 43, the fourth omni-directional antenna 44, the first ultra-high frequency RFID reading circuit, the second ultra-high frequency RFID reading circuit, the third ultra-high frequency RFID reading circuit, the fourth ultra-high frequency RFID reading circuit, the map information storage circuit, the electronic map loading circuit, etc. may be obtained by referring to the embodiment as conventional, and will not be repeated herein. The positioning algorithm running circuit can receive the receiving and transmitting time information of the four reading circuits, so that the existing four-point positioning algorithm can be run to determine the three-dimensional coordinate position of the passive RFID tag on the asset side relative to the inventory equipment, and the purposes of further improving the positioning result precision and the mapping display effect are achieved. In addition, in the present checking device, the checking device positioning circuit, the battery, the charging interface, and the start-stop switch key 111 may be configured as in the first embodiment, so as to achieve the corresponding technical effects.

The technical details and technical effects of the present embodiment may be directly derived by referring to the embodiments, and are not described herein.

Finally, it should be noted that: the foregoing description is only of the preferred embodiments of the utility model and is not intended to limit the scope of the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The handheld portable asset inventory device with the map visualization function is characterized by comprising a handheld portable shell (1), a circuit board, a display screen (3), a first omnidirectional antenna (41) and a second omnidirectional antenna (42), wherein the circuit board is arranged in the handheld portable shell (1) and is provided with a first ultrahigh frequency RFID reading circuit, a second ultrahigh frequency RFID reading circuit, a positioning algorithm running circuit, a map information storage circuit and an electronic map loading circuit, the display screen (3) is arranged at the top of the handheld portable shell (1) and is obliquely arranged facing a device holder, and the first omnidirectional antenna (41) and the second omnidirectional antenna (42) are respectively arranged at the front part of the handheld portable shell (1) and are mutually perpendicular in a horizontal plane;

The first omnidirectional antenna (41) is electrically connected with the first ultrahigh frequency RFID reading circuit, the second omnidirectional antenna (42) is electrically connected with the second ultrahigh frequency RFID reading circuit, the first ultrahigh frequency RFID reading circuit and the second ultrahigh frequency RFID reading circuit are respectively electrically connected with the positioning algorithm running circuit, and the electronic map loading circuit is respectively electrically connected with the positioning algorithm running circuit, the map information storage circuit and the display screen (3).

2. The hand-held portable asset inventory device according to claim 1, characterized in that a third omnidirectional antenna (43) intersecting the horizontal plane is also mounted on the front of the hand-held portable housing (1), and that a third ultra-high frequency RFID reading circuit is also arranged on the circuit board, wherein the third omnidirectional antenna (43) is electrically connected to the third ultra-high frequency RFID reading circuit, which is electrically connected to the positioning algorithm running circuit.

3. The hand-held portable asset inventory device of claim 1, further comprising inventory device positioning circuitry disposed on the circuit board, wherein the inventory device positioning circuitry is electrically connected to the electronic map loading circuitry.

4. The hand-held portable asset inventory device according to claim 1, characterized in that a battery is mounted inside the hand-held portable housing (1), wherein the battery is electrically connected to the power supply terminals of the first ultra-high frequency RFID reading circuit, the second ultra-high frequency RFID reading circuit, the positioning algorithm running circuit, the map information storage circuit, the electronic map loading circuit and the display screen (3), respectively.

5. A hand-held portable asset inventory device according to claim 4, characterised in that the battery is mounted inside the hand-held grip (11) of the hand-held portable housing (1) and that a charging interface is provided at the bottom of the hand-held grip (11) electrically connected to the battery.

6. The hand-held portable asset inventory device according to claim 5, characterized in that a start-stop switch key (111) is embedded on the forefinger contact surface of the hand-held handle (11), wherein the start-stop switch key (111) is connected in series between the output end of the battery and the power supply end.

7. The hand-held portable asset inventory device of claim 1, in which the first ultra-high frequency RFID reading circuit or the second ultra-high frequency RFID reading circuit is implemented using an ultra-high frequency RFID reader module of model THINGMAGIC M e-Micro and its peripheral circuitry.

8. The hand-held portable asset inventory device of claim 1, in which the positioning algorithm operating circuit or the electronic map loading circuit is implemented using a microprocessor chip model Broadcom BCM2711 and its peripheral circuitry.

9. The hand-held portable asset inventory device of claim 1, in which the display screen (3) is implemented with a 5 inch capacitive touch screen model CTP-P050001 GG.

10. The handheld portable asset inventory device with the map visualization function is characterized by comprising a handheld portable shell (1), a circuit board, a display screen (3), a first omni-directional antenna (41), a second omni-directional antenna (42), a third omni-directional antenna (43) and a fourth omni-directional antenna (44), wherein the circuit board is arranged inside the handheld portable shell (1) and is provided with a first ultrahigh frequency RFID reading circuit, a second ultrahigh frequency RFID reading circuit, a third ultrahigh frequency RFID reading circuit, a fourth ultrahigh frequency RFID reading circuit, a positioning algorithm running circuit, a map information storage circuit and an electronic map loading circuit, the display screen (3) is arranged on the top of the handheld portable shell (1) and is obliquely arranged towards a device holder, the first omni-directional antenna (41) and the second omni-directional antenna (42) are respectively arranged on the left side of the front of the handheld portable shell (1) and are mutually perpendicular, and the third omni-directional antenna (43) and the fourth omni-directional antenna (44) are respectively arranged on the right side of the handheld portable shell (1) and on the right side of the first omni-directional antenna (41) and the fourth omni-directional antenna (44) are mutually perpendicular to each other;

The first omnidirectional antenna (41) is electrically connected with the first ultrahigh frequency RFID reading circuit, the second omnidirectional antenna (42) is electrically connected with the second ultrahigh frequency RFID reading circuit, the third omnidirectional antenna (43) is electrically connected with the third ultrahigh frequency RFID reading circuit, the fourth omnidirectional antenna (44) is electrically connected with the fourth ultrahigh frequency RFID reading circuit, the first ultrahigh frequency RFID reading circuit, the second ultrahigh frequency RFID reading circuit, the third ultrahigh frequency RFID reading circuit and the fourth ultrahigh frequency RFID reading circuit are respectively electrically connected with the positioning algorithm operation circuit, and the electronic map loading circuit is respectively electrically connected with the positioning algorithm operation circuit, the map information storage circuit and the display screen (3).