Production equipment according to an embodiment of the present invention includes a machine learning system and an assembly and test unit. The assembly and test unit chooses components from component groups having different characteristic values, assembles the chosen components into a product, and tests the assembled product. The machine learning system includes a state observer for observing a test result of the product and the inventory amounts of the components grouped based on the characteristic values of the components; a reward calculator for calculating a reward based on the test result and the inventory amounts; an artificial intelligence for determining an action value based on an observation result by the state observer and the reward calculated by the reward calculator; and a decision maker for choosing components to be used in the next product assembly from the component groups based on a determination result by the artificial intelligence.
Please help me write a proper abstract based on the patent claims. CLAIM: 1. Production equipment comprising: a machine learning system; and an assembly and test unit, wherein the assembly and test unit chooses a plurality of components from a plurality of component groups having different characteristic values, assembles the chosen plurality of components into a product, and tests the assembled product; the machine learning system includes: a state observer for observing a test result of the product and the inventory amounts of the plurality of components grouped based on the characteristic values of the components; a reward calculator for calculating a reward based on the test result and the inventory amounts; an artificial intelligence for determining an action value based on an observation result by the state observer and the reward calculated by the reward calculator; and a decision maker for choosing a plurality of components to be used in the next product assembly from the plurality of component groups based on a determination result by the artificial intelligence. 2. The production equipment according to claim 1, wherein the reward calculator calculates a higher reward as the performance of the product, as the test result, is closer to a target level, and calculates a lower reward as the difference in the inventory amounts of the components grouped based on the characteristic values of the components is increased. 3. The production equipment according to claim 1, wherein the artificial intelligence determines the own action value based on an observation result by a state observer and a reward calculated by a reward calculator of other production equipment having an identical configuration to the production equipment. 4. The production equipment according to claim 1, wherein at least part of the products are motor drives; and the plurality of components include at least one of a current sensor and an A/D converter constituting a current detection circuit of the motor drive. 5. The production equipment according to claim 1, wherein the characteristic of the component is an offset voltage; and the test result is an offset value of a current detection circuit of a motor drive.