MOWING SYSTEM CAPABLE OF ENHANCING POSITIONING PRECISION

Abstract

A mowing system includes a charging station, a base station, and a mowing robot. The base station and the charging station are set independently from each other. The base station has a first communication unit and a first GPS antenna. The mowing robot has a second GPS antenna and a control unit electrically connected with the second GPS antenna and wirelessly connected with the first GPS antenna, such that the control unit receives a first GPS signal obtained by the first GPS antenna and a second GPS signal obtained by the second GPS antenna and determines a positioning coordinate of the mower robot according to the first GPS signal and the second GPS signal. As such, the installation position of the base station is not restricted by the surrounding environment or the charging station so as to enhance positioning precision.

Claims

1. A mowing system comprising: a charging station; a base station set independently from the charging station, the base station including a first communication unit and a first GPS antenna; and a mowing robot including a second communication unit configured to establish a communication connection with the first communication unit of the base station, the mowing robot further including a second GPS antenna and a control unit electrically connected with the second GPS antenna and the first GPS antenna to receive a first GPS signal obtained by the first GPS antenna and a second GPS signal obtained by the second GPS antenna and determine a positioning coordinate of the mower robot according to the first GPS signal and the second GPS signal.

2. The mowing system as claimed in claim 1, wherein the base station further includes a microcontroller electrically connected with the first communication unit and the first GPS antenna, and a power supply unit electrically connected with the microcontroller.

3. The mowing system as claimed in claim 2, wherein the base station further includes a stake and a base; the first GPS antenna is disposed to a top end of the stake; the base is connected with a bottom end of the stake.

4. The mowing system as claimed in claim 3, wherein the base has a tripod and a ground rod connected with the tripod.

5. The mowing system as claimed in claim 2, wherein the power supply unit is a solar power unit, including a solar panel exposed outside and a storage battery electrically connected with the solar panel and the microcontroller.

6. The mowing system as claimed in claim 1, wherein when the mowing robot moves to the charging station, the control unit determines whether the mowing robot is charging and determines whether the position of the mowing robot is within an error range.

7. The mowing system as claimed in claim 1, wherein a wireless transmission method between the control unit and the first GPS antenna is LoRa, Zigbee, Wi-Fi, Bluetooth or a mobile communication network.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0014] FIG. 1 is a perspective view of the mowing system of the present invention.

[0015] FIG. 2 is a block diagram of the mowing system of the present invention.

[0016] FIG. 3 is a schematic drawing of the mowing system of the present invention, showing the GPS module is set on the roof.

DETAILED DESCRIPTION OF THE INVENTION

[0017] First of all, it is to be mentioned that the directions used in the following embodiments and the appendix claims are based on the directions in the appendix drawings. Further, same or similar reference numerals used in the following embodiments and the appendix drawings designate same or similar elements or the structural features thereof.

[0018] Referring to FIG. 1, a mowing system 10 of the present invention comprises a charging station 20, a base station 30, and a mowing robot 40.

[0019] The charging station 20 is installed on the ground and electrically connected with an external power supply (such as a household socket, not shown in FIGS.) for charging the mowing robot 40.

[0020] The base station 30 is set independently from the charging station 20, i.e., they are not set together. Further, the base station 30 includes a stake 31, a GPS module 32, and a base 33. The GPS module 32 is detachably connected with the top end of the stake 31, so that the signal generated or obtained by the GPS module 32 is not easily blocked. The base 33 is connected with the bottom end of the stake 31 and provided with a tripod 34 and a ground rod 35 connected with the tripod 34 in this embodiment. In this way, the base 33 provides a good structural stability without tipping through the tripod 34, and the base 33 can be adjusted its position arbitrarily through the ground rod 35 that can be directly inserted in the grass. The GPS module 32 includes a first communication unit 322, a first GPS antenna 324, and a microcontroller 326. The microcontroller 326 is electrically connected with the first communication unit 322 and the first GPS antenna 324 for controlling the operation of the first communication unit 322 and the first GPS antenna 324. In addition, as shown in FIG. 2, the base station 30 further includes a power supply unit 36 disposed to the top end of the stake 31 and electrically connected with the microcontroller 326 for providing power to the microcontroller 326. In this embodiment, the power supply unit 36 is a solar power unit, including a solar panel 37 exposed outside to absorb sunlight and convert the sunlight into electrical energy and store the electrical energy in a storage battery 38 that provides the electrical energy to the microcontroller 326. As such, the base station 30 can generate electricity independently without relying on the external power supply, so the base station 30 is very flexible in use.

[0021] As shown in FIG. 2, the mowing robot 40 includes a second communication unit 42 configured to establish a communication connection with the first communication unit 322 of the base station 30. The mowing robot 40 further includes a second GPS antenna 44, and a control unit 46. The control unit 46 is electrically connected with the second communication unit 42 and the second GPS antenna 44 on one hand, and on the other hand, the control unit 46 is connected with the first GPS antenna 324 of the base station 30 in a wireless manner (such as LoRa, Zigbee, Wi-Fi, Bluetooth or a mobile communication network, which is not limited here), such that the control unit 46 receives a first GPS signal obtained by a GPS chip 325 of the first GPS antenna 324 and a second signal obtained by a GPS chip 45 of the second GPS antenna 44 and determines a positioning coordinate of the mower robot 40 according to the first GPS signal and the second GPS signal.

[0022] On first use, the charging station 20 is installed in place, and then the mowing robot 40 is placed on the charging station 20 for charging. At this time, the mowing robot 40 sends a signal to the GPS module 32 to obtain the positioning coordinate of the mower robot 40 as a reference for the subsequent calculation of the related position of the mower robot 40. In addition, by means of the communication connection between the first communication unit 322 and the second communication unit 42, when the mowing robot 40 moves to the charging station 20, the control unit 46 determines whether the mowing robot 40 is charging and determines whether the position of the mowing robot 40 is within an error range according to the first GPS signal and the second GPS signal.

[0023] What needs to be added here is that if the location of the GPS module 32 leads to a situation where the signal generated by the GPS module 32 is seriously blocked, the GPS module 32 can be detached from the top end of the stake 31 and installed in a less shaded place (such as a roof shown in FIG. 3) to greatly improve the accuracy of positioning.

[0024] As indicated above, the charging station 20 and the base station 30 provided by the mowing system 10 of the present invention are set independently from each other, and further, the base station 30 can generate electricity independently, such that the installation position of the base station 30 is not restricted by the surrounding environment or the charging station 20. Therefore, the base station 30 can be installed in a location with good signal reception to achieve a purpose of enhancing positioning precision.